3-(-8)=45

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Solution for 3-(-8)=45 equation: 


Simplifying
3 + -1(-8) = 45

Multiply -1 * -8
3 + 8 = 45

Combine like terms: 3 + 8 = 11
11 = 45

Solving
11 = 45

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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