-30=7x+3(-2x-13)

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Solution for -30=7x+3(-2x-13) equation: 



-30=7x+3(-2x-13)

We move all terms to the left:

-30-(7x+3(-2x-13))=0



We calculate terms in parentheses: -(7x+3(-2x-13)), so:

7x+3(-2x-13)

We multiply parentheses

7x-6x-39

We add all the numbers together, and all the variables

x-39

Back to the equation:

-(x-39)



We get rid of parentheses

-x+39-30=0

We add all the numbers together, and all the variables

-1x+9=0

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

-x=-9

x=-9/-1

x=+9

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