15+2f=-7(3f-8)

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Solution for 15+2f=-7(3f-8) equation:


Simplifying
15 + 2f = -7(3f + -8)

Reorder the terms:
15 + 2f = -7(-8 + 3f)
15 + 2f = (-8 * -7 + 3f * -7)
15 + 2f = (56 + -21f)

Solving
15 + 2f = 56 + -21f

Solving for variable 'f'.

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

Add '21f' to each side of the equation.
15 + 2f + 21f = 56 + -21f + 21f

Combine like terms: 2f + 21f = 23f
15 + 23f = 56 + -21f + 21f

Combine like terms: -21f + 21f = 0
15 + 23f = 56 + 0
15 + 23f = 56

Add '-15' to each side of the equation.
15 + -15 + 23f = 56 + -15

Combine like terms: 15 + -15 = 0
0 + 23f = 56 + -15
23f = 56 + -15

Combine like terms: 56 + -15 = 41
23f = 41

Divide each side by '23'.
f = 1.782608696

Simplifying
f = 1.782608696

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