F(1)+F(-2)=7-9x

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Solution for F(1)+F(-2)=7-9x equation: 


Simplifying
F(1) + F(-2) = 7 + -9x

Reorder the terms for easier multiplication:
1F + F(-2) = 7 + -9x

Reorder the terms for easier multiplication:
1F + -2F = 7 + -9x

Combine like terms: 1F + -2F = -1F
-1F = 7 + -9x

Solving
-1F = 7 + -9x

Solving for variable 'F'.

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

Divide each side by '-1'.
F = -7 + 9x

Simplifying
F = -7 + 9x

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