20f+(-8-15)=3(4f-5)

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Solution for 20f+(-8-15)=3(4f-5) equation:


Simplifying
20f + (-8 + -15) = 3(4f + -5)

Combine like terms: -8 + -15 = -23
20f + (-23) = 3(4f + -5)
20f + -23 = 3(4f + -5)

Reorder the terms:
-23 + 20f = 3(4f + -5)

Reorder the terms:
-23 + 20f = 3(-5 + 4f)
-23 + 20f = (-5 * 3 + 4f * 3)
-23 + 20f = (-15 + 12f)

Solving
-23 + 20f = -15 + 12f

Solving for variable 'f'.

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

Add '-12f' to each side of the equation.
-23 + 20f + -12f = -15 + 12f + -12f

Combine like terms: 20f + -12f = 8f
-23 + 8f = -15 + 12f + -12f

Combine like terms: 12f + -12f = 0
-23 + 8f = -15 + 0
-23 + 8f = -15

Add '23' to each side of the equation.
-23 + 23 + 8f = -15 + 23

Combine like terms: -23 + 23 = 0
0 + 8f = -15 + 23
8f = -15 + 23

Combine like terms: -15 + 23 = 8
8f = 8

Divide each side by '8'.
f = 1

Simplifying
f = 1

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