F(3)=-7x+8

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Solution for F(3)=-7x+8 equation: 


Simplifying
F(3) = -7x + 8

Reorder the terms for easier multiplication:
3F = -7x + 8

Reorder the terms:
3F = 8 + -7x

Solving
3F = 8 + -7x

Solving for variable 'F'.

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

Divide each side by '3'.
F = 2.666666667 + -2.333333333x

Simplifying
F = 2.666666667 + -2.333333333x

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