7=18-5f

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Solution for 7=18-5f equation:


Simplifying
7 = 18 + -5f

Solving
7 = 18 + -5f

Solving for variable 'f'.

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

Add '5f' to each side of the equation.
7 + 5f = 18 + -5f + 5f

Combine like terms: -5f + 5f = 0
7 + 5f = 18 + 0
7 + 5f = 18

Add '-7' to each side of the equation.
7 + -7 + 5f = 18 + -7

Combine like terms: 7 + -7 = 0
0 + 5f = 18 + -7
5f = 18 + -7

Combine like terms: 18 + -7 = 11
5f = 11

Divide each side by '5'.
f = 2.2

Simplifying
f = 2.2

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