8=4s+20

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Solution for 8=4s+20 equation:


Simplifying
8 = 4s + 20

Reorder the terms:
8 = 20 + 4s

Solving
8 = 20 + 4s

Solving for variable 's'.

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

Add '-4s' to each side of the equation.
8 + -4s = 20 + 4s + -4s

Combine like terms: 4s + -4s = 0
8 + -4s = 20 + 0
8 + -4s = 20

Add '-8' to each side of the equation.
8 + -8 + -4s = 20 + -8

Combine like terms: 8 + -8 = 0
0 + -4s = 20 + -8
-4s = 20 + -8

Combine like terms: 20 + -8 = 12
-4s = 12

Divide each side by '-4'.
s = -3

Simplifying
s = -3

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