-18=-8+5(f+9)

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Solution for -18=-8+5(f+9) equation:


Simplifying
-18 = -8 + 5(f + 9)

Reorder the terms:
-18 = -8 + 5(9 + f)
-18 = -8 + (9 * 5 + f * 5)
-18 = -8 + (45 + 5f)

Combine like terms: -8 + 45 = 37
-18 = 37 + 5f

Solving
-18 = 37 + 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.
-18 + -5f = 37 + 5f + -5f

Combine like terms: 5f + -5f = 0
-18 + -5f = 37 + 0
-18 + -5f = 37

Add '18' to each side of the equation.
-18 + 18 + -5f = 37 + 18

Combine like terms: -18 + 18 = 0
0 + -5f = 37 + 18
-5f = 37 + 18

Combine like terms: 37 + 18 = 55
-5f = 55

Divide each side by '-5'.
f = -11

Simplifying
f = -11

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