21-4s=0.5s

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Solution for 21-4s=0.5s equation:


Simplifying
21 + -4s = 0.5s

Solving
21 + -4s = 0.5s

Solving for variable 's'.

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

Add '-0.5s' to each side of the equation.
21 + -4s + -0.5s = 0.5s + -0.5s

Combine like terms: -4s + -0.5s = -4.5s
21 + -4.5s = 0.5s + -0.5s

Combine like terms: 0.5s + -0.5s = 0.0
21 + -4.5s = 0.0

Add '-21' to each side of the equation.
21 + -21 + -4.5s = 0.0 + -21

Combine like terms: 21 + -21 = 0
0 + -4.5s = 0.0 + -21
-4.5s = 0.0 + -21

Combine like terms: 0.0 + -21 = -21
-4.5s = -21

Divide each side by '-4.5'.
s = 4.666666667

Simplifying
s = 4.666666667

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