-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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