7(1)+7(-1)=-7

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Solution for 7(1)+7(-1)=-7 equation: 


Simplifying
7(1) + 7(-1) = -7

Multiply 7 * 1
7 + 7(-1) = -7

Multiply 7 * -1
7 + -7 = -7

Combine like terms: 7 + -7 = 0
0 = -7

Solving
0 = -7

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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