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arlik [135]
3 years ago
6

12(x-2) +3x= 1/2(x+6)+2

Mathematics
2 answers:
ratelena [41]3 years ago
8 0

Answer: x=2

explanation: just right

Rus_ich [418]3 years ago
6 0

Answer:

Step-by-step explanation:

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

  12*(x-2)+3*x-((1)/(2)*(x+6)+2)=0

Simplify   1/2

                   1  

 ((12•(x-2))+3x)-((—•(x+6))+2)  = 0  

                   2

                                       6

((12 • (x - 2)) +  3x) -  (——————— +  2)  = 0  

                                         2      

Adding a whole to a fraction

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

2=2/1= 2 . 2 / 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 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+6) + 2 . 2 / 2 = X+10 / 2

                                   (x + 10)

 ((12 • (x - 2)) +  3x) -  ————————  = 0  

                                       2

                                 (x + 10)

 (12 • (x - 2) +  3x) -  ————————  = 0  

                                   2      

Subtracting a fraction from a whole

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

                          15x - 24                        (15x - 24) • 2

    15x - 24 =  ————————  =  ——————————————

                            1                                       2      

           

Pull out like factors :

  15x - 24  =   3 • (5x - 8)

Adding up the two equivalent fractions

3 • (5x-8) • 2 - ((x+10))/2 = 29x - 58/2

Pull out like factors :

  29x - 58  =   29 • (x - 2)

29 • (x - 2)/2 =0

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:

   29•(x-2)

 ———————— • 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 :

  29  •  (x-2)  = 0

Equation which are never true

 Solve :    29   =  0

This equation has no solution.

A a non-zero constant never equals zero.

Solving a single variable equation

Solve  :    x-2 = 0  

Add  2  to both sides of the equation :  

                     x = 2

PLease Mark Brainliest!

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12) Find the sum, S7, for the geometric series (1 + 5 + 25+ --- + 15625).
vfiekz [6]

Answer:

Find the (r) between adjacent members

a2/a1=+25/5=5

a3/a2=+125/+25=5

a4/a3=+625/+125=5

a5/a4=+3125/+625=5

a6/a5=+15625/+3125=5

The ration (r) between every two adjacent members of the series is constant and equal to 5

General Form: a

n

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This geometric series: a

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The nature of this series

Sum of finite geometric series members

sum of a geometric series

The sum of our particular series

a 1-rn = 5 1-56 = 5 1-15625 = 5 -15624 =5×3906=19530

1-r 1-5 -4 -4

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a2 =a1×r2-1  =a1×r1 =5×51 =25

a3 =a1×r3-1  =a1×r2 =5×52 =125

a4 =a1×r4-1  =a1×r3 =5×53 =625

a5 =a1×r5-1  =a1×r4 =5×54 =3125

a6 =a1×r6-1  =a1×r5 =5×55 =15625

a7 =a1×r7-1  =a1×r6 =5×56 =78125

a8 =a1×r8-1  =a1×r7 =5×57 =390625

a9 =a1×r9-1  =a1×r8 =5×58 =1953125

a10 =a1×r10-1  =a1×r9 =5×59 =9765625

a11 =a1×r11-1  =a1×r10 =5×510 =48828125

a12 =a1×r12-1  =a1×r11 =5×511 =244140625

a13 =a1×r13-1  =a1×r12 =5×512 =1220703125

a14 =a1×r14-1  =a1×r13 =5×513 =6103515625

a15 =a1×r15-1  =a1×r14 =5×514 =30517578125

a16 =a1×r16-1  =a1×r15 =5×515 =152587890625

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4 years ago
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What is the value of x innthe equation 1.5(x+4)-3=4.5(x-2)
daser333 [38]

~~~~~~1.5(x+4)-3 = 4.5(x-2)\\\\\implies 15(x+4) -30 =45(x-2)~~~~~~~~;[\text{Multiply both sides by 10]}\\\\\implies 3(x+4)-6=9(x-2)~~~~~~~~~~;[\text{Divide both sides by 5]}\\\\\implies 3x+12-6=9x-18\\\\\implies 3x+6=9x-18\\\\\implies 9x-3x = 18+6\\\\\implies 6x = 24\\\\\implies x = \dfrac{24}6\\\\\implies x =4

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2 years ago
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