5f-12=2f+9

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Solution for 5f-12=2f+9 equation:


Simplifying
5f + -12 = 2f + 9

Reorder the terms:
-12 + 5f = 2f + 9

Reorder the terms:
-12 + 5f = 9 + 2f

Solving
-12 + 5f = 9 + 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.
-12 + 5f + -2f = 9 + 2f + -2f

Combine like terms: 5f + -2f = 3f
-12 + 3f = 9 + 2f + -2f

Combine like terms: 2f + -2f = 0
-12 + 3f = 9 + 0
-12 + 3f = 9

Add '12' to each side of the equation.
-12 + 12 + 3f = 9 + 12

Combine like terms: -12 + 12 = 0
0 + 3f = 9 + 12
3f = 9 + 12

Combine like terms: 9 + 12 = 21
3f = 21

Divide each side by '3'.
f = 7

Simplifying
f = 7

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