f(x)=x+2x+15

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Solution for f(x)=x+2x+15 equation: 


Simplifying
f(x) = x + 2x + 15

Multiply f * x
fx = x + 2x + 15

Reorder the terms:
fx = 15 + x + 2x

Combine like terms: x + 2x = 3x
fx = 15 + 3x

Solving
fx = 15 + 3x

Solving for variable 'f'.

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

Divide each side by 'x'.
f = 15x-1 + 3

Simplifying
f = 15x-1 + 3

Reorder the terms:
f = 3 + 15x-1

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