F(7a)=x-3

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


Simplifying
F(7a) = x + -3

Remove parenthesis around (7a)
F * 7a = x + -3

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

Multiply F * a
7aF = x + -3

Reorder the terms:
7aF = -3 + x

Solving
7aF = -3 + x

Solving for variable 'a'.

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

Divide each side by '7F'.
a = -0.4285714286F-1 + 0.1428571429xF-1

Simplifying
a = -0.4285714286F-1 + 0.1428571429xF-1

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