s*12+12=s*3+138

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Solution for s*12+12=s*3+138 equation:


Simplifying
s * 12 + 12 = s * 3 + 138

Reorder the terms for easier multiplication:
12s + 12 = s * 3 + 138

Reorder the terms:
12 + 12s = s * 3 + 138

Reorder the terms for easier multiplication:
12 + 12s = 3s + 138

Reorder the terms:
12 + 12s = 138 + 3s

Solving
12 + 12s = 138 + 3s

Solving for variable 's'.

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

Add '-3s' to each side of the equation.
12 + 12s + -3s = 138 + 3s + -3s

Combine like terms: 12s + -3s = 9s
12 + 9s = 138 + 3s + -3s

Combine like terms: 3s + -3s = 0
12 + 9s = 138 + 0
12 + 9s = 138

Add '-12' to each side of the equation.
12 + -12 + 9s = 138 + -12

Combine like terms: 12 + -12 = 0
0 + 9s = 138 + -12
9s = 138 + -12

Combine like terms: 138 + -12 = 126
9s = 126

Divide each side by '9'.
s = 14

Simplifying
s = 14

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