7f=80+9f

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Solution for 7f=80+9f equation: 


Simplifying
7f = 80 + 9f

Solving
7f = 80 + 9f

Solving for variable 'f'.

Move all terms containing f to the left, all other terms to the right.

Add '-9f' to each side of the equation.
7f + -9f = 80 + 9f + -9f

Combine like terms: 7f + -9f = -2f
-2f = 80 + 9f + -9f

Combine like terms: 9f + -9f = 0
-2f = 80 + 0
-2f = 80

Divide each side by '-2'.
f = -40

Simplifying
f = -40

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