31=5f+3f

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Solution for 31=5f+3f equation:


Simplifying
31 = 5f + 3f

Combine like terms: 5f + 3f = 8f
31 = 8f

Solving
31 = 8f

Solving for variable 'f'.

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

Add '-8f' to each side of the equation.
31 + -8f = 8f + -8f

Combine like terms: 8f + -8f = 0
31 + -8f = 0

Add '-31' to each side of the equation.
31 + -31 + -8f = 0 + -31

Combine like terms: 31 + -31 = 0
0 + -8f = 0 + -31
-8f = 0 + -31

Combine like terms: 0 + -31 = -31
-8f = -31

Divide each side by '-8'.
f = 3.875

Simplifying
f = 3.875

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