7(f+1)=10f-21

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Solution for 7(f+1)=10f-21 equation:


Simplifying
7(f + 1) = 10f + -21

Reorder the terms:
7(1 + f) = 10f + -21
(1 * 7 + f * 7) = 10f + -21
(7 + 7f) = 10f + -21

Reorder the terms:
7 + 7f = -21 + 10f

Solving
7 + 7f = -21 + 10f

Solving for variable 'f'.

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

Add '-10f' to each side of the equation.
7 + 7f + -10f = -21 + 10f + -10f

Combine like terms: 7f + -10f = -3f
7 + -3f = -21 + 10f + -10f

Combine like terms: 10f + -10f = 0
7 + -3f = -21 + 0
7 + -3f = -21

Add '-7' to each side of the equation.
7 + -7 + -3f = -21 + -7

Combine like terms: 7 + -7 = 0
0 + -3f = -21 + -7
-3f = -21 + -7

Combine like terms: -21 + -7 = -28
-3f = -28

Divide each side by '-3'.
f = 9.333333333

Simplifying
f = 9.333333333

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