1+-3=9

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Solution for 1+-3=9 equation: 


Simplifying
1 + -3 = 9

Combine like terms: 1 + -3 = -2
-2 = 9

Solving
-2 = 9

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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