4(f+9)=28

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Solution for 4(f+9)=28 equation: 


Simplifying
4(f + 9) = 28

Reorder the terms:
4(9 + f) = 28
(9 * 4 + f * 4) = 28
(36 + 4f) = 28

Solving
36 + 4f = 28

Solving for variable 'f'.

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

Add '-36' to each side of the equation.
36 + -36 + 4f = 28 + -36

Combine like terms: 36 + -36 = 0
0 + 4f = 28 + -36
4f = 28 + -36

Combine like terms: 28 + -36 = -8
4f = -8

Divide each side by '4'.
f = -2

Simplifying
f = -2

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