(-5)(-4)-(3)(4)=

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Solution for (-5)(-4)-(3)(4)= equation: 


Simplifying
(-5)(-4) + -1(3)(4) = 0

Multiply -5 * -4
20 + -1(3)(4) = 0

Multiply -1 * 3
20 + -3 * 4 = 0

Multiply -3 * 4
20 + -12 = 0

Combine like terms: 20 + -12 = 8
8 = 0

Solving
8 = 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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