-4+[(-12+1)-(-1-9)]=

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Solution for -4+[(-12+1)-(-1-9)]= equation: 


Simplifying
-4 + [(-12 + 1) + -1(-1 + -9)] = 0

Combine like terms: -12 + 1 = -11
-4 + [(-11) + -1(-1 + -9)] = 0
-4 + [-11 + -1(-1 + -9)] = 0

Combine like terms: -1 + -9 = -10
-4 + [-11 + -1(-10)] = 0

Multiply -1 * -10
-4 + [-11 + 10] = 0

Combine like terms: -11 + 10 = -1
-4 + [-1] = 0
-4 + -1 = 0

Combine like terms: -4 + -1 = -5
-5 = 0

Solving
-5 = 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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