-9(-10+9+9-20)=

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Solution for -9(-10+9+9-20)= equation: 


Simplifying
-9(-10 + 9 + 9 + -20) = 0

Combine like terms: -10 + 9 = -1
-9(-1 + 9 + -20) = 0

Combine like terms: -1 + 9 = 8
-9(8 + -20) = 0

Combine like terms: 8 + -20 = -12
-9(-12) = 0

Multiply -9 * -12
108 = 0

Solving
108 = 0

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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