f(50)=0.9x-20

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Solution for f(50)=0.9x-20 equation: 


Simplifying
f(50) = 0.9x + -20

Reorder the terms for easier multiplication:
50f = 0.9x + -20

Reorder the terms:
50f = -20 + 0.9x

Solving
50f = -20 + 0.9x

Solving for variable 'f'.

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

Divide each side by '50'.
f = -0.4 + 0.018x

Simplifying
f = -0.4 + 0.018x

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