85=7x-3(4x+15)

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Solution for 85=7x-3(4x+15) equation: 



85=7x-3(4x+15)

We move all terms to the left:

85-(7x-3(4x+15))=0



We calculate terms in parentheses: -(7x-3(4x+15)), so:

7x-3(4x+15)

We multiply parentheses

7x-12x-45

We add all the numbers together, and all the variables

-5x-45

Back to the equation:

-(-5x-45)



We get rid of parentheses

5x+45+85=0

We add all the numbers together, and all the variables

5x+130=0

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

5x=-130

x=-130/5

x=-26

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