-4+9(-4)-21=

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


Simplifying
-4 + 9(-4) + -21 = 0

Multiply 9 * -4
-4 + -36 + -21 = 0

Combine like terms: -4 + -36 = -40
-40 + -21 = 0

Combine like terms: -40 + -21 = -61
-61 = 0

Solving
-61 = 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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