49+2x=-31+7x=90

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Solution for 49+2x=-31+7x=90 equation: 



49+2x=-31+7x=90

We move all terms to the left:

49+2x-(-31+7x)=0

We add all the numbers together, and all the variables

2x-(7x-31)+49=0

We get rid of parentheses

2x-7x+31+49=0

We add all the numbers together, and all the variables

-5x+80=0

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

-5x=-80

x=-80/-5

x=+16

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