f(5)=4(5)-8

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Solution for f(5)=4(5)-8 equation: 


Simplifying
f(5) = 4(5) + -8

Reorder the terms for easier multiplication:
5f = 4(5) + -8

Multiply 4 * 5
5f = 20 + -8

Combine like terms: 20 + -8 = 12
5f = 12

Solving
5f = 12

Solving for variable 'f'.

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

Divide each side by '5'.
f = 2.4

Simplifying
f = 2.4

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