5(-9)+9(-4)=

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Solution for 5(-9)+9(-4)= equation: 


Simplifying
5(-9) + 9(-4) = 0

Multiply 5 * -9
-45 + 9(-4) = 0

Multiply 9 * -4
-45 + -36 = 0

Combine like terms: -45 + -36 = -81
-81 = 0

Solving
-81 = 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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