[7+(-9)]+(-3)=7+[(-9)+(-3)]

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Solution for [7+(-9)]+(-3)=7+[(-9)+(-3)] equation: 


Simplifying
[7 + (-9)] + (-3) = 7 + [(-9) + (-3)]
[7 + -9] + (-3) = 7 + [(-9) + (-3)]

Combine like terms: 7 + -9 = -2
[-2] + (-3) = 7 + [(-9) + (-3)]
-2 + (-3) = 7 + [(-9) + (-3)]
-2 + -3 = 7 + [(-9) + (-3)]

Combine like terms: -2 + -3 = -5
-5 = 7 + [(-9) + (-3)]
-5 = 7 + [-9 + (-3)]
-5 = 7 + [-9 + -3]

Combine like terms: -9 + -3 = -12
-5 = 7 + [-12]
-5 = 7 + -12

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

Add '5' to each side of the equation.
-5 + 5 = -5 + 5

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

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

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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