7f+8=9f

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Solution for 7f+8=9f equation:


Simplifying
7f + 8 = 9f

Reorder the terms:
8 + 7f = 9f

Solving
8 + 7f = 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.
8 + 7f + -9f = 9f + -9f

Combine like terms: 7f + -9f = -2f
8 + -2f = 9f + -9f

Combine like terms: 9f + -9f = 0
8 + -2f = 0

Add '-8' to each side of the equation.
8 + -8 + -2f = 0 + -8

Combine like terms: 8 + -8 = 0
0 + -2f = 0 + -8
-2f = 0 + -8

Combine like terms: 0 + -8 = -8
-2f = -8

Divide each side by '-2'.
f = 4

Simplifying
f = 4

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