-61=3(f-4)+5(7-3f)

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Solution for -61=3(f-4)+5(7-3f) equation:


Simplifying
-61 = 3(f + -4) + 5(7 + -3f)

Reorder the terms:
-61 = 3(-4 + f) + 5(7 + -3f)
-61 = (-4 * 3 + f * 3) + 5(7 + -3f)
-61 = (-12 + 3f) + 5(7 + -3f)
-61 = -12 + 3f + (7 * 5 + -3f * 5)
-61 = -12 + 3f + (35 + -15f)

Reorder the terms:
-61 = -12 + 35 + 3f + -15f

Combine like terms: -12 + 35 = 23
-61 = 23 + 3f + -15f

Combine like terms: 3f + -15f = -12f
-61 = 23 + -12f

Solving
-61 = 23 + -12f

Solving for variable 'f'.

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

Add '12f' to each side of the equation.
-61 + 12f = 23 + -12f + 12f

Combine like terms: -12f + 12f = 0
-61 + 12f = 23 + 0
-61 + 12f = 23

Add '61' to each side of the equation.
-61 + 61 + 12f = 23 + 61

Combine like terms: -61 + 61 = 0
0 + 12f = 23 + 61
12f = 23 + 61

Combine like terms: 23 + 61 = 84
12f = 84

Divide each side by '12'.
f = 7

Simplifying
f = 7

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