80=5x+7(-2x+5)

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Solution for 80=5x+7(-2x+5) equation: 



80=5x+7(-2x+5)

We move all terms to the left:

80-(5x+7(-2x+5))=0



We calculate terms in parentheses: -(5x+7(-2x+5)), so:

5x+7(-2x+5)

We multiply parentheses

5x-14x+35

We add all the numbers together, and all the variables

-9x+35

Back to the equation:

-(-9x+35)



We get rid of parentheses

9x-35+80=0

We add all the numbers together, and all the variables

9x+45=0

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

9x=-45

x=-45/9

x=-5

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