-2f-7f=-9f

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Solution for -2f-7f=-9f equation: 


Simplifying
-2f + -7f = -9f

Combine like terms: -2f + -7f = -9f
-9f = -9f

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

Combine like terms: -9f + 9f = 0
0 = -9f + 9f

Combine like terms: -9f + 9f = 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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