5(3f+1)-3(2f-7)=80

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Solution for 5(3f+1)-3(2f-7)=80 equation:


Simplifying
5(3f + 1) + -3(2f + -7) = 80

Reorder the terms:
5(1 + 3f) + -3(2f + -7) = 80
(1 * 5 + 3f * 5) + -3(2f + -7) = 80
(5 + 15f) + -3(2f + -7) = 80

Reorder the terms:
5 + 15f + -3(-7 + 2f) = 80
5 + 15f + (-7 * -3 + 2f * -3) = 80
5 + 15f + (21 + -6f) = 80

Reorder the terms:
5 + 21 + 15f + -6f = 80

Combine like terms: 5 + 21 = 26
26 + 15f + -6f = 80

Combine like terms: 15f + -6f = 9f
26 + 9f = 80

Solving
26 + 9f = 80

Solving for variable 'f'.

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

Add '-26' to each side of the equation.
26 + -26 + 9f = 80 + -26

Combine like terms: 26 + -26 = 0
0 + 9f = 80 + -26
9f = 80 + -26

Combine like terms: 80 + -26 = 54
9f = 54

Divide each side by '9'.
f = 6

Simplifying
f = 6

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