70x=90(x-2)

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Solution for 70x=90(x-2) equation: 



70x=90(x-2)

We move all terms to the left:

70x-(90(x-2))=0



We calculate terms in parentheses: -(90(x-2)), so:

90(x-2)

We multiply parentheses

90x-180

Back to the equation:

-(90x-180)



We get rid of parentheses

70x-90x+180=0

We add all the numbers together, and all the variables

-20x+180=0

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

-20x=-180

x=-180/-20

x=+9

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