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

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


Simplifying
(-4)(9) + -1(-5)(4) = 0

Multiply -4 * 9
-36 + -1(-5)(4) = 0

Multiply -1 * -5
-36 + 5 * 4 = 0

Multiply 5 * 4
-36 + 20 = 0

Combine like terms: -36 + 20 = -16
-16 = 0

Solving
-16 = 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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