12s-9+12s+28=139

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Solution for 12s-9+12s+28=139 equation:


Simplifying
12s + -9 + 12s + 28 = 139

Reorder the terms:
-9 + 28 + 12s + 12s = 139

Combine like terms: -9 + 28 = 19
19 + 12s + 12s = 139

Combine like terms: 12s + 12s = 24s
19 + 24s = 139

Solving
19 + 24s = 139

Solving for variable 's'.

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

Add '-19' to each side of the equation.
19 + -19 + 24s = 139 + -19

Combine like terms: 19 + -19 = 0
0 + 24s = 139 + -19
24s = 139 + -19

Combine like terms: 139 + -19 = 120
24s = 120

Divide each side by '24'.
s = 5

Simplifying
s = 5

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