f(x)=1.2x+3.9

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Solution for f(x)=1.2x+3.9 equation: 


Simplifying
f(x) = 1.2x + 3.9

Multiply f * x
fx = 1.2x + 3.9

Reorder the terms:
fx = 3.9 + 1.2x

Solving
fx = 3.9 + 1.2x

Solving for variable 'f'.

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

Divide each side by 'x'.
f = 3.9x-1 + 1.2

Simplifying
f = 3.9x-1 + 1.2

Reorder the terms:
f = 1.2 + 3.9x-1

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