3(f-7)=-12

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Solution for 3(f-7)=-12 equation: 


Simplifying
3(f + -7) = -12

Reorder the terms:
3(-7 + f) = -12
(-7 * 3 + f * 3) = -12
(-21 + 3f) = -12

Solving
-21 + 3f = -12

Solving for variable 'f'.

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

Add '21' to each side of the equation.
-21 + 21 + 3f = -12 + 21

Combine like terms: -21 + 21 = 0
0 + 3f = -12 + 21
3f = -12 + 21

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

Divide each side by '3'.
f = 3

Simplifying
f = 3

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