7(-4-5)=21

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Solution for 7(-4-5)=21 equation: 


Simplifying
7(-4 + -5) = 21

Combine like terms: -4 + -5 = -9
7(-9) = 21

Multiply 7 * -9
-63 = 21

Solving
-63 = 21

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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