f(4)=3(x+5)

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Solution for f(4)=3(x+5) equation: 


Simplifying
f(4) = 3(x + 5)

Reorder the terms for easier multiplication:
4f = 3(x + 5)

Reorder the terms:
4f = 3(5 + x)
4f = (5 * 3 + x * 3)
4f = (15 + 3x)

Solving
4f = 15 + 3x

Solving for variable 'f'.

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

Divide each side by '4'.
f = 3.75 + 0.75x

Simplifying
f = 3.75 + 0.75x

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