3*3-2*-2=

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Solution for 3*3-2*-2= equation: 


Simplifying
3 * 3 + -2 * -2 = 0

Multiply 3 * 3
9 + -2 * -2 = 0

Multiply -2 * -2
9 + 4 = 0

Combine like terms: 9 + 4 = 13
13 = 0

Solving
13 = 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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