8+7x=3x-12

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Solution for 8+7x=3x-12 equation: 



8+7x=3x-12

We move all terms to the left:

8+7x-(3x-12)=0

We get rid of parentheses

7x-3x+12+8=0

We add all the numbers together, and all the variables

4x+20=0

We move all terms containing x to the left, all other terms to the right

4x=-20

x=-20/4

x=-5

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