-102=-3(4+5x)

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Solution for -102=-3(4+5x) equation: 



-102=-3(4+5x)

We move all terms to the left:

-102-(-3(4+5x))=0

We add all the numbers together, and all the variables

-(-3(5x+4))-102=0



We calculate terms in parentheses: -(-3(5x+4)), so:

-3(5x+4)

We multiply parentheses

-15x-12

Back to the equation:

-(-15x-12)



We get rid of parentheses

15x+12-102=0

We add all the numbers together, and all the variables

15x-90=0

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

15x=90

x=90/15

x=6

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