(-7)(3)-(5)(-3)=

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Solution for (-7)(3)-(5)(-3)= equation: 


Simplifying
(-7)(3) + -1(5)(-3) = 0

Multiply -7 * 3
-21 + -1(5)(-3) = 0

Multiply -1 * 5
-21 + -5 * -3 = 0

Multiply -5 * -3
-21 + 15 = 0

Combine like terms: -21 + 15 = -6
-6 = 0

Solving
-6 = 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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