7-3[5-(2+5)]=

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Solution for 7-3[5-(2+5)]= equation: 


Simplifying
7 + -3[5 + -1(2 + 5)] = 0

Combine like terms: 2 + 5 = 7
7 + -3[5 + -1(7)] = 0

Multiply -1 * 7
7 + -3[5 + -7] = 0

Combine like terms: 5 + -7 = -2
7 + -3[-2] = 0

Multiply -3 * -2
7 + 6 = 0

Combine like terms: 7 + 6 = 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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