-72=-9(10+x)

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Solution for -72=-9(10+x) equation: 



-72=-9(10+x)

We move all terms to the left:

-72-(-9(10+x))=0

We add all the numbers together, and all the variables

-(-9(x+10))-72=0



We calculate terms in parentheses: -(-9(x+10)), so:

-9(x+10)

We multiply parentheses

-9x-90

Back to the equation:

-(-9x-90)



We get rid of parentheses

9x+90-72=0

We add all the numbers together, and all the variables

9x+18=0

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

9x=-18

x=-18/9

x=-2

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