-18=-3(x+1)

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Solution for -18=-3(x+1) equation: 



-18=-3(x+1)

We move all terms to the left:

-18-(-3(x+1))=0



We calculate terms in parentheses: -(-3(x+1)), so:

-3(x+1)

We multiply parentheses

-3x-3

Back to the equation:

-(-3x-3)



We get rid of parentheses

3x+3-18=0

We add all the numbers together, and all the variables

3x-15=0

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

3x=15

x=15/3

x=5

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