135+2x=90+7x

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Solution for 135+2x=90+7x equation: 



135+2x=90+7x

We move all terms to the left:

135+2x-(90+7x)=0

We add all the numbers together, and all the variables

2x-(7x+90)+135=0

We get rid of parentheses

2x-7x-90+135=0

We add all the numbers together, and all the variables

-5x+45=0

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

-5x=-45

x=-45/-5

x=+9

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