7+1-9-2+12=

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Solution for 7+1-9-2+12= equation: 


Simplifying
7 + 1 + -9 + -2 + 12 = 0

Combine like terms: 7 + 1 = 8
8 + -9 + -2 + 12 = 0

Combine like terms: 8 + -9 = -1
-1 + -2 + 12 = 0

Combine like terms: -1 + -2 = -3
-3 + 12 = 0

Combine like terms: -3 + 12 = 9
9 = 0

Solving
9 = 0

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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