21-7(-1)=14

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Solution for 21-7(-1)=14 equation: 


Simplifying
21 + -7(-1) = 14

Multiply -7 * -1
21 + 7 = 14

Combine like terms: 21 + 7 = 28
28 = 14

Solving
28 = 14

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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