7x+8=2x-12

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Solution for 7x+8=2x-12 equation: 



7x+8=2x-12

We move all terms to the left:

7x+8-(2x-12)=0

We get rid of parentheses

7x-2x+12+8=0

We add all the numbers together, and all the variables

5x+20=0

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

5x=-20

x=-20/5

x=-4

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