5(-1)+4(-1)=9

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Solution for 5(-1)+4(-1)=9 equation: 


Simplifying
5(-1) + 4(-1) = 9

Multiply 5 * -1
-5 + 4(-1) = 9

Multiply 4 * -1
-5 + -4 = 9

Combine like terms: -5 + -4 = -9
-9 = 9

Solving
-9 = 9

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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