[6+(-9)]-[20+(-7)]=

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Solution for [6+(-9)]-[20+(-7)]= equation: 


Simplifying
[6 + (-9)] + -1[20 + (-7)] = 0
[6 + -9] + -1[20 + (-7)] = 0

Combine like terms: 6 + -9 = -3
[-3] + -1[20 + (-7)] = 0
-3 + -1[20 + (-7)] = 0
-3 + -1[20 + -7] = 0

Combine like terms: 20 + -7 = 13
-3 + -1[13] = 0

Multiply -1 * 13
-3 + -13 = 0

Combine like terms: -3 + -13 = -16
-16 = 0

Solving
-16 = 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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