3s-12=-30+9s

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Solution for 3s-12=-30+9s equation:


Simplifying
3s + -12 = -30 + 9s

Reorder the terms:
-12 + 3s = -30 + 9s

Solving
-12 + 3s = -30 + 9s

Solving for variable 's'.

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

Add '-9s' to each side of the equation.
-12 + 3s + -9s = -30 + 9s + -9s

Combine like terms: 3s + -9s = -6s
-12 + -6s = -30 + 9s + -9s

Combine like terms: 9s + -9s = 0
-12 + -6s = -30 + 0
-12 + -6s = -30

Add '12' to each side of the equation.
-12 + 12 + -6s = -30 + 12

Combine like terms: -12 + 12 = 0
0 + -6s = -30 + 12
-6s = -30 + 12

Combine like terms: -30 + 12 = -18
-6s = -18

Divide each side by '-6'.
s = 3

Simplifying
s = 3

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