fA(x)=2800+(x-1)*100

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Solution for fA(x)=2800+(x-1)*100 equation: 


Simplifying
fA(x) = 2800 + (x + -1) * 100

Multiply fA * x
fxA = 2800 + (x + -1) * 100

Reorder the terms:
fxA = 2800 + (-1 + x) * 100

Reorder the terms for easier multiplication:
fxA = 2800 + 100(-1 + x)
fxA = 2800 + (-1 * 100 + x * 100)
fxA = 2800 + (-100 + 100x)

Combine like terms: 2800 + -100 = 2700
fxA = 2700 + 100x

Solving
fxA = 2700 + 100x

Solving for variable 'f'.

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

Divide each side by 'xA'.
f = 2700x-1A-1 + 100A-1

Simplifying
f = 2700x-1A-1 + 100A-1

Reorder the terms:
f = 100A-1 + 2700x-1A-1

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