f(-x)=3(-x)-8

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Solution for f(-x)=3(-x)-8 equation: 


Simplifying
f(-1x) = 3(-1x) + -8

Remove parenthesis around (-1x)
f * -1x = 3(-1x) + -8

Reorder the terms for easier multiplication:
-1f * x = 3(-1x) + -8

Multiply f * x
-1fx = 3(-1x) + -8

Remove parenthesis around (-1x)
-1fx = 3 * -1x + -8

Multiply 3 * -1
-1fx = -3x + -8

Reorder the terms:
-1fx = -8 + -3x

Solving
-1fx = -8 + -3x

Solving for variable 'f'.

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

Divide each side by '-1x'.
f = 8x-1 + 3

Simplifying
f = 8x-1 + 3

Reorder the terms:
f = 3 + 8x-1

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