7+x=-7x+71

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Solution for 7+x=-7x+71 equation: 



7+x=-7x+71

We move all terms to the left:

7+x-(-7x+71)=0

We get rid of parentheses

x+7x-71+7=0

We add all the numbers together, and all the variables

8x-64=0

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

8x=64

x=64/8

x=8

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