-9+-2=4+-15

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Solution for -9+-2=4+-15 equation: 


Simplifying
-9 + -2 = 4 + -15

Combine like terms: -9 + -2 = -11
-11 = 4 + -15

Combine like terms: 4 + -15 = -11
-11 = -11

Add '11' to each side of the equation.
-11 + 11 = -11 + 11

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

Combine like terms: -11 + 11 = 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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