x=-x+7

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Solution for x=-x+7 equation: 



x=-x+7

We move all terms to the left:

x-(-x+7)=0

We add all the numbers together, and all the variables

x-(-1x+7)=0

We get rid of parentheses

x+1x-7=0

We add all the numbers together, and all the variables

2x-7=0

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

2x=7

x=7/2

x=3+1/2

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