-21=3(8s+9)

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Solution for -21=3(8s+9) equation:


Simplifying
-21 = 3(8s + 9)

Reorder the terms:
-21 = 3(9 + 8s)
-21 = (9 * 3 + 8s * 3)
-21 = (27 + 24s)

Solving
-21 = 27 + 24s

Solving for variable 's'.

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

Add '-24s' to each side of the equation.
-21 + -24s = 27 + 24s + -24s

Combine like terms: 24s + -24s = 0
-21 + -24s = 27 + 0
-21 + -24s = 27

Add '21' to each side of the equation.
-21 + 21 + -24s = 27 + 21

Combine like terms: -21 + 21 = 0
0 + -24s = 27 + 21
-24s = 27 + 21

Combine like terms: 27 + 21 = 48
-24s = 48

Divide each side by '-24'.
s = -2

Simplifying
s = -2

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