7+18x=-(-15x-19)

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Solution for 7+18x=-(-15x-19) equation: 



7+18x=-(-15x-19)

We move all terms to the left:

7+18x-(-(-15x-19))=0



We calculate terms in parentheses: -(-(-15x-19)), so:

-(-15x-19)

We get rid of parentheses

15x+19

Back to the equation:

-(15x+19)



We get rid of parentheses

18x-15x-19+7=0

We add all the numbers together, and all the variables

3x-12=0

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

3x=12

x=12/3

x=4

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