f(a)=2x-1

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Solution for f(a)=2x-1 equation: 


Simplifying
f(a) = 2x + -1

Multiply f * a
af = 2x + -1

Reorder the terms:
af = -1 + 2x

Solving
af = -1 + 2x

Solving for variable 'a'.

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

Divide each side by 'f'.
a = -1f-1 + 2f-1x

Simplifying
a = -1f-1 + 2f-1x

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