6f-3(f+4)=9

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Solution for 6f-3(f+4)=9 equation:


Simplifying
6f + -3(f + 4) = 9

Reorder the terms:
6f + -3(4 + f) = 9
6f + (4 * -3 + f * -3) = 9
6f + (-12 + -3f) = 9

Reorder the terms:
-12 + 6f + -3f = 9

Combine like terms: 6f + -3f = 3f
-12 + 3f = 9

Solving
-12 + 3f = 9

Solving for variable 'f'.

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

Add '12' to each side of the equation.
-12 + 12 + 3f = 9 + 12

Combine like terms: -12 + 12 = 0
0 + 3f = 9 + 12
3f = 9 + 12

Combine like terms: 9 + 12 = 21
3f = 21

Divide each side by '3'.
f = 7

Simplifying
f = 7

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