9(4-8s)=21

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Solution for 9(4-8s)=21 equation: 


Simplifying
9(4 + -8s) = 21
(4 * 9 + -8s * 9) = 21
(36 + -72s) = 21

Solving
36 + -72s = 21

Solving for variable 's'.

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

Add '-36' to each side of the equation.
36 + -36 + -72s = 21 + -36

Combine like terms: 36 + -36 = 0
0 + -72s = 21 + -36
-72s = 21 + -36

Combine like terms: 21 + -36 = -15
-72s = -15

Divide each side by '-72'.
s = 0.2083333333

Simplifying
s = 0.2083333333

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