18+3-(-12-7)=

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Solution for 18+3-(-12-7)= equation: 


Simplifying
18 + 3 + -1(-12 + -7) = 0

Combine like terms: -12 + -7 = -19
18 + 3 + -1(-19) = 0

Multiply -1 * -19
18 + 3 + 19 = 0

Combine like terms: 18 + 3 = 21
21 + 19 = 0

Combine like terms: 21 + 19 = 40
40 = 0

Solving
40 = 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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