fx=(4x-7)+(x-x+3)

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Solution for fx=(4x-7)+(x-x+3) equation: 


Simplifying
fx = (4x + -7) + (x + -1x + 3)

Reorder the terms:
fx = (-7 + 4x) + (x + -1x + 3)

Remove parenthesis around (-7 + 4x)
fx = -7 + 4x + (x + -1x + 3)

Reorder the terms:
fx = -7 + 4x + (3 + x + -1x)

Combine like terms: x + -1x = 0
fx = -7 + 4x + (3 + 0)
fx = -7 + 4x + (3)
fx = -7 + 4x + 3

Reorder the terms:
fx = -7 + 3 + 4x

Combine like terms: -7 + 3 = -4
fx = -4 + 4x

Solving
fx = -4 + 4x

Solving for variable 'f'.

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

Divide each side by 'x'.
f = -4x-1 + 4

Simplifying
f = -4x-1 + 4

Reorder the terms:
f = 4 + -4x-1

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