-4(-2-5)+9=21

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Solution for -4(-2-5)+9=21 equation: 


Simplifying
-4(-2 + -5) + 9 = 21

Combine like terms: -2 + -5 = -7
-4(-7) + 9 = 21

Multiply -4 * -7
28 + 9 = 21

Combine like terms: 28 + 9 = 37
37 = 21

Solving
37 = 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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