90=x+(x-56)

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Solution for 90=x+(x-56) equation: 



90=x+(x-56)

We move all terms to the left:

90-(x+(x-56))=0



We calculate terms in parentheses: -(x+(x-56)), so:

x+(x-56)

We get rid of parentheses

x+x-56

We add all the numbers together, and all the variables

2x-56

Back to the equation:

-(2x-56)



We get rid of parentheses

-2x+56+90=0

We add all the numbers together, and all the variables

-2x+146=0

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

-2x=-146

x=-146/-2

x=+73

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