-7+(-4)-(-21)=

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


Simplifying
-7 + (-4) + -1(-21) = 0
-7 + -4 + -1(-21) = 0

Multiply -1 * -21
-7 + -4 + 21 = 0

Combine like terms: -7 + -4 = -11
-11 + 21 = 0

Combine like terms: -11 + 21 = 10
10 = 0

Solving
10 = 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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