f(-3-1)=2x+3

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Solution for f(-3-1)=2x+3 equation: 


Simplifying
f(-3 + -1) = 2x + 3

Combine like terms: -3 + -1 = -4
f(-4) = 2x + 3

Reorder the terms for easier multiplication:
-4f = 2x + 3

Reorder the terms:
-4f = 3 + 2x

Solving
-4f = 3 + 2x

Solving for variable 'f'.

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

Divide each side by '-4'.
f = -0.75 + -0.5x

Simplifying
f = -0.75 + -0.5x

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