f(20)=-8(20)+20

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Solution for f(20)=-8(20)+20 equation: 


Simplifying
f(20) = -8(20) + 20

Reorder the terms for easier multiplication:
20f = -8(20) + 20

Multiply -8 * 20
20f = -160 + 20

Combine like terms: -160 + 20 = -140
20f = -140

Solving
20f = -140

Solving for variable 'f'.

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

Divide each side by '20'.
f = -7

Simplifying
f = -7

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