80=4S

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Solution for 80=4S equation:


Simplifying
80 = 4S

Solving
80 = 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.
80 + -4S = 4S + -4S

Combine like terms: 4S + -4S = 0
80 + -4S = 0

Add '-80' to each side of the equation.
80 + -80 + -4S = 0 + -80

Combine like terms: 80 + -80 = 0
0 + -4S = 0 + -80
-4S = 0 + -80

Combine like terms: 0 + -80 = -80
-4S = -80

Divide each side by '-4'.
S = 20

Simplifying
S = 20

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