-2(6+8f)=-21

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Solution for -2(6+8f)=-21 equation: 


Simplifying
-2(6 + 8f) = -21
(6 * -2 + 8f * -2) = -21
(-12 + -16f) = -21

Solving
-12 + -16f = -21

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 + -16f = -21 + 12

Combine like terms: -12 + 12 = 0
0 + -16f = -21 + 12
-16f = -21 + 12

Combine like terms: -21 + 12 = -9
-16f = -9

Divide each side by '-16'.
f = 0.5625

Simplifying
f = 0.5625

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