3(f-3)=12

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Solution for 3(f-3)=12 equation: 


Simplifying
3(f + -3) = 12

Reorder the terms:
3(-3 + f) = 12
(-3 * 3 + f * 3) = 12
(-9 + 3f) = 12

Solving
-9 + 3f = 12

Solving for variable 'f'.

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

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

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

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

Divide each side by '3'.
f = 7

Simplifying
f = 7

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