f(10)=20x+40

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Solution for f(10)=20x+40 equation: 


Simplifying
f(10) = 20x + 40

Reorder the terms for easier multiplication:
10f = 20x + 40

Reorder the terms:
10f = 40 + 20x

Solving
10f = 40 + 20x

Solving for variable 'f'.

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

Divide each side by '10'.
f = 4 + 2x

Simplifying
f = 4 + 2x

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