f(x)+4=12

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Solution for f(x)+4=12 equation: 


Simplifying
f(x) + 4 = 12

Multiply f * x
fx + 4 = 12

Reorder the terms:
4 + fx = 12

Solving
4 + fx = 12

Solving for variable 'f'.

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

Add '-4' to each side of the equation.
4 + -4 + fx = 12 + -4

Combine like terms: 4 + -4 = 0
0 + fx = 12 + -4
fx = 12 + -4

Combine like terms: 12 + -4 = 8
fx = 8

Divide each side by 'x'.
f = 8x-1

Simplifying
f = 8x-1

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