71-x=x-7

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Solution for 71-x=x-7 equation: 



71-x=x-7

We move all terms to the left:

71-x-(x-7)=0

We add all the numbers together, and all the variables

-1x-(x-7)+71=0

We get rid of parentheses

-1x-x+7+71=0

We add all the numbers together, and all the variables

-2x+78=0

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

-2x=-78

x=-78/-2

x=+39

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