5-[2-9]=

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Solution for 5-[2-9]= equation: 


Simplifying
5 + -1[2 + -9] = 0

Combine like terms: 2 + -9 = -7
5 + -1[-7] = 0

Multiply -1 * -7
5 + 7 = 0

Combine like terms: 5 + 7 = 12
12 = 0

Solving
12 = 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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