75=3x-3(7x+5)

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Solution for 75=3x-3(7x+5) equation: 



75=3x-3(7x+5)

We move all terms to the left:

75-(3x-3(7x+5))=0



We calculate terms in parentheses: -(3x-3(7x+5)), so:

3x-3(7x+5)

We multiply parentheses

3x-21x-15

We add all the numbers together, and all the variables

-18x-15

Back to the equation:

-(-18x-15)



We get rid of parentheses

18x+15+75=0

We add all the numbers together, and all the variables

18x+90=0

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

18x=-90

x=-90/18

x=-5

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