7=-x+12

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Solution for 7=-x+12 equation: 



7=-x+12

We move all terms to the left:

7-(-x+12)=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

1x-12+7=0

We add all the numbers together, and all the variables

x-5=0

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

x=5

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