7x+3-12=-x+7

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



7x+3-12=-x+7

We move all terms to the left:

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

We add all the numbers together, and all the variables

7x-(-1x+7)+3-12=0

We add all the numbers together, and all the variables

7x-(-1x+7)-9=0

We get rid of parentheses

7x+1x-7-9=0

We add all the numbers together, and all the variables

8x-16=0

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

8x=16

x=16/8

x=2

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