103=-2x-7(-1x-9)

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Solution for 103=-2x-7(-1x-9) equation: 



103=-2x-7(-1x-9)

We move all terms to the left:

103-(-2x-7(-1x-9))=0



We calculate terms in parentheses: -(-2x-7(-1x-9)), so:

-2x-7(-1x-9)

We multiply parentheses

-2x+7x+63

We add all the numbers together, and all the variables

5x+63

Back to the equation:

-(5x+63)



We get rid of parentheses

-5x-63+103=0

We add all the numbers together, and all the variables

-5x+40=0

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

-5x=-40

x=-40/-5

x=+8

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