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vekshin1
4 years ago
13

-1/2x+1=1 1/2x+17/2 I NEED HELP ON THIS PLEASE HELP THANK YOU, SO, MUCH.

Mathematics
1 answer:
Pani-rosa [81]4 years ago
3 0

Answer:

 x = -5/4 = -1.250

Step-by-step explanation:

Step  1  :

           17

Simplify   ——

           2  

Equation at the end of step  1  :

      1          11    17

 ((0-(—•x))+1)-((——•x)+——)  = 0  

      2          2     2  

Step  2  :

           11

Simplify   ——

           2  

Equation at the end of step  2  :

      1          11    17

 ((0-(—•x))+1)-((——•x)+——)  = 0  

      2          2     2  

Step  3  :

Adding fractions which have a common denominator :

3.1       Adding fractions which have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

11x + 17     11x + 17

————————  =  ————————

   2            2    

Equation at the end of step  3  :

         1                (11x + 17)

 ((0 -  (— • x)) +  1) -  ——————————  = 0  

         2                    2      

Step  4  :

           1

Simplify   —

           2

Equation at the end of step  4  :

         1                (11x + 17)

 ((0 -  (— • x)) +  1) -  ——————————  = 0  

         2                    2      

Step  5  :

Rewriting the whole as an Equivalent Fraction :

5.1   Adding a whole to a fraction

Rewrite the whole as a fraction using  2  as the denominator :

        1     1 • 2

   1 =  —  =  —————

        1       2  

Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

Adding fractions that have a common denominator :

5.2       Adding up the two equivalent fractions

Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

-x + 2     2 - x

——————  =  —————

  2          2  

Equation at the end of step  5  :

 (2 - x)    (11x + 17)

 ——————— -  ——————————  = 0  

    2           2      

Step  6  :

Adding fractions which have a common denominator :

6.1       Adding fractions which have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

(2-x) - ((11x+17))     -12x - 15

——————————————————  =  —————————

        2                  2    

Step  7  :

Pulling out like terms :

7.1     Pull out like factors :

  -12x - 15  =   -3 • (4x + 5)  

Equation at the end of step  7  :

 -3 • (4x + 5)

 —————————————  = 0  

       2      

Step  8  :

When a fraction equals zero :

8.1    When a fraction equals zero ...

Where a fraction equals zero, its numerator, the part which is above the fraction line, must equal zero.

Now,to get rid of the denominator, Tiger multiplys both sides of the equation by the denominator.

Here's how:

 -3•(4x+5)

 ————————— • 2 = 0 • 2

     2    

Now, on the left hand side, the  2  cancels out the denominator, while, on the right hand side, zero times anything is still zero.

The equation now takes the shape :

  -3  •  (4x+5)  = 0

Equations which are never true :

8.2      Solve :    -3   =  0

This equation has no solution.

A a non-zero constant never equals zero.

Solving a Single Variable Equation :

8.3      Solve  :    4x+5 = 0  

Subtract  5  from both sides of the equation :  

                     4x = -5

Divide both sides of the equation by 4:

                    x = -5/4 = -1.250

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What is the value of the expression when n=3 6(n^2+2)/n<br><br> 16<br> 22<br> 30<br> 66
Kipish [7]
The correct answer is:  [B]:  " 22 " . 
_________________________________________________________
Explanation:
_________________________________________________________
Given:
_________________________________________________________

\frac{6(n^2 + 2)}{3} ;

Solve when:  "n = 3" ; 

Rewrite the expression; substituting "3" for all values of "n" ; as follows:

  →  \frac{6(3^2+2)}{3} ; 

The "6" cancels out to "2" ; & the "3" cancels out to "1" ; 

→  {since:  " {6 ÷ 3 = 2}" ; and since:  " {2 ÷ 2 = 1}" .
_________________________________________________________
→  Since the "denominator" is "1" ; and any value, divided by "1";  results in that original value;  we can eliminate the denominator.

→  Now, we can rewrite the expression as:
_________________________________________________________
     →  "  2(3² + 2)"  ; 

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_________________________________________________________
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4 0
3 years ago
MARKING BRAINLEST!!!!!!!!!
lapo4ka [179]

Answer:

A  3^4 * 3^-4 / 3^6

C 1 / 3^6

Step-by-step explanation:

( 3^2 * 3^-2)

-------------------  all the the power of 2

           3^3

First simplify the numerator

We know a^b* a^c = a^(b*c)

( 3^(2+-2))

-------------------  all to the power of 2

           3^3

( 3^(0))

-------------------  all to the power of 2

           3^3

( 3^(0))

-------------------  all to the power of 2

           3^3

We know a^b/ a^c = a^(b-c)

3^(0-3)  all to the power of 2

3^-3 all to the power of 2

3^-3 ^2

We know that a^b^c = a^(b*c)

3^(-3*2)

3^ -6

We know the negative exponent takes if from the numerator to the denominator

1 / 3^6

The other correct choice is A

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1/3^6 is the same answer

8 0
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