-45=3x-7(x+3)

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Solution for -45=3x-7(x+3) equation: 



-45=3x-7(x+3)

We move all terms to the left:

-45-(3x-7(x+3))=0



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

3x-7(x+3)

We multiply parentheses

3x-7x-21

We add all the numbers together, and all the variables

-4x-21

Back to the equation:

-(-4x-21)



We get rid of parentheses

4x+21-45=0

We add all the numbers together, and all the variables

4x-24=0

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

4x=24

x=24/4

x=6

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