f(x)=7x-3

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Solution for f(x)=7x-3 equation: 


Simplifying
f(x) = 7x + -3

Multiply f * x
fx = 7x + -3

Reorder the terms:
fx = -3 + 7x

Solving
fx = -3 + 7x

Solving for variable 'f'.

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

Divide each side by 'x'.
f = -3x-1 + 7

Simplifying
f = -3x-1 + 7

Reorder the terms:
f = 7 + -3x-1

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