1-f=18-3f

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Solution for 1-f=18-3f equation:


Simplifying
1 + -1f = 18 + -3f

Solving
1 + -1f = 18 + -3f

Solving for variable 'f'.

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

Add '3f' to each side of the equation.
1 + -1f + 3f = 18 + -3f + 3f

Combine like terms: -1f + 3f = 2f
1 + 2f = 18 + -3f + 3f

Combine like terms: -3f + 3f = 0
1 + 2f = 18 + 0
1 + 2f = 18

Add '-1' to each side of the equation.
1 + -1 + 2f = 18 + -1

Combine like terms: 1 + -1 = 0
0 + 2f = 18 + -1
2f = 18 + -1

Combine like terms: 18 + -1 = 17
2f = 17

Divide each side by '2'.
f = 8.5

Simplifying
f = 8.5

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