3+2+-7=21

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Solution for 3+2+-7=21 equation: 


Simplifying
3 + 2 + -7 = 21

Combine like terms: 3 + 2 = 5
5 + -7 = 21

Combine like terms: 5 + -7 = -2
-2 = 21

Solving
-2 = 21

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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