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12s+5s-3=4s
We simplify the equation to the form, which is simple to understand
12s+5s-3=4s
We move all terms containing s to the left and all other terms to the right.
+12s+5s-4s=+3
We simplify left and right side of the equation.
+13s=+3
We divide both sides of the equation by 13 to get s.
s=0.23076923076923
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