s+fs-7=0

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Solution for s+fs-7=0 equation:


Simplifying
s + fs + -7 = 0

Reorder the terms:
-7 + fs + s = 0

Solving
-7 + fs + s = 0

Solving for variable 'f'.

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

Add '7' to each side of the equation.
-7 + fs + 7 + s = 0 + 7

Reorder the terms:
-7 + 7 + fs + s = 0 + 7

Combine like terms: -7 + 7 = 0
0 + fs + s = 0 + 7
fs + s = 0 + 7

Combine like terms: 0 + 7 = 7
fs + s = 7

Add '-1s' to each side of the equation.
fs + s + -1s = 7 + -1s

Combine like terms: s + -1s = 0
fs + 0 = 7 + -1s
fs = 7 + -1s

Divide each side by 's'.
f = 7s-1 + -1

Simplifying
f = 7s-1 + -1

Reorder the terms:
f = -1 + 7s-1

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