9-7c=9+-7c

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Solution for 9-7c=9+-7c equation: 


Simplifying
9 + -7c = 9 + -7c

Add '-9' to each side of the equation.
9 + -9 + -7c = 9 + -9 + -7c

Combine like terms: 9 + -9 = 0
0 + -7c = 9 + -9 + -7c
-7c = 9 + -9 + -7c

Combine like terms: 9 + -9 = 0
-7c = 0 + -7c
-7c = -7c

Add '7c' to each side of the equation.
-7c + 7c = -7c + 7c

Combine like terms: -7c + 7c = 0
0 = -7c + 7c

Combine like terms: -7c + 7c = 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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