3f-9=2f

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Solution for 3f-9=2f equation:


Simplifying
3f + -9 = 2f

Reorder the terms:
-9 + 3f = 2f

Solving
-9 + 3f = 2f

Solving for variable 'f'.

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

Add '-2f' to each side of the equation.
-9 + 3f + -2f = 2f + -2f

Combine like terms: 3f + -2f = 1f
-9 + 1f = 2f + -2f

Combine like terms: 2f + -2f = 0
-9 + 1f = 0

Add '9' to each side of the equation.
-9 + 9 + 1f = 0 + 9

Combine like terms: -9 + 9 = 0
0 + 1f = 0 + 9
1f = 0 + 9

Combine like terms: 0 + 9 = 9
1f = 9

Divide each side by '1'.
f = 9

Simplifying
f = 9

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