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ycow [4]
4 years ago
7

What value of x makes this equation true? -2x+3=-15

Mathematics
2 answers:
Dafna1 [17]4 years ago
7 0

Answer: 9

Step-by-step explanation:

-2x+3=-15(move 3 to the other side, it turn -3, -15-3=-18

-3 -3

-2x=-18(Divide -2 to the other side, -18•/•-2=9; if both number negative, the answer will be positive)

X=9

zhannawk [14.2K]4 years ago
5 0

Answer:

<em>x = 9</em>

Step-by-step explanation:

-2x + 3 = -15

-2x = -15 - 3

-2x = -18

x = 9

Hope this helps! :)

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a=\frac{n-p}{m},   final answer

If you need any further help, please ask me :)

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Naja is paid p dollars per hour she works. For every hour she works over 40 hours, she is paid time and a half which means she i
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Answer:

40p + 10 (1.5p)

Step-by-step explanation:

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Find the inverse of F(x)=1/-x-1 +1
jek_recluse [69]

Answer:

0

Step-by-step explanation:

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    0-(1/(-x)-1+1)=0

Step by step solution :

Step  1  :

            1

Simplify   ——

           -x

Equation at the end of step  1  :

         1          

 0 -  ((—— -  1) +  1)  = 0

        -x          

Step  2  :

Rewriting the whole as an Equivalent Fraction :

2.1   Subtracting a whole from a fraction

Rewrite the whole as a fraction using  -x  as the denominator :

        1     1 • -x

   1 =  —  =  ——————

        1       -x  

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 :

2.2       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:

-1 - (x)     -x - 1

————————  =  ——————

   x           x  

Equation at the end of step  2  :

       (-x - 1)    

 0 -  (———————— +  1)  = 0

          x        

Step  3  :

Rewriting the whole as an Equivalent Fraction :

3.1   Adding a whole to a fraction

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

        1     1 • x

   1 =  —  =  —————

        1       x  

Step  4  :

Pulling out like terms :

4.1     Pull out like factors :

  -x - 1  =   -1 • (x + 1)

Adding fractions that have a common denominator :

4.2       Adding up the two equivalent fractions

(-x-1) + x     -1

——————————  =  ——

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Equation at the end of step  4  :

      -1

 0 -  ——  = 0

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Step  5  :

Equation at the end of step  5  :

 1

 —  = 0

 x

Step  6  :

When a fraction equals zero :

6.1    When a fraction equals zero ...

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

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Here's how:

 1

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 x

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The equation now takes the shape :

  1  = 0

Equations which are never true :

6.2      Solve :    1   =  0

This equation has no solution.

A a non-zero constant never equals zero.

No solutions found

plz mark me as brainliest if this helped :)

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