23-(-5)=18

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Solution for 23-(-5)=18 equation: 


Simplifying
23 + -1(-5) = 18

Multiply -1 * -5
23 + 5 = 18

Combine like terms: 23 + 5 = 28
28 = 18

Solving
28 = 18

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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