-8+-9=-8+-9

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Solution for -8+-9=-8+-9 equation: 


Simplifying
-8 + -9 = -8 + -9

Combine like terms: -8 + -9 = -17
-17 = -8 + -9

Combine like terms: -8 + -9 = -17
-17 = -17

Add '17' to each side of the equation.
-17 + 17 = -17 + 17

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

Combine like terms: -17 + 17 = 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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