[(-21)+(-7)]+11=

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Solution for [(-21)+(-7)]+11= equation: 


Simplifying
[(-21) + (-7)] + 11 = 0
[-21 + (-7)] + 11 = 0
[-21 + -7] + 11 = 0

Combine like terms: -21 + -7 = -28
[-28] + 11 = 0
-28 + 11 = 0

Combine like terms: -28 + 11 = -17
-17 = 0

Solving
-17 = 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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