9+-12+-7=-1

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Solution for 9+-12+-7=-1 equation: 


Simplifying
9 + -12 + -7 = -1

Combine like terms: 9 + -12 = -3
-3 + -7 = -1

Combine like terms: -3 + -7 = -10
-10 = -1

Solving
-10 = -1

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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