Solve for s
s=2
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7s+12-4s=18
Use the distributive property to multiply 4 by 3-s.
3s+12=18
Combine 7s and -4s to get 3s.
3s=18-12
Subtract 12 from both sides.
3s=6
Subtract 12 from 18 to get 6.
s=\frac{6}{3}
Divide both sides by 3.
s=2
Divide 6 by 3 to get 2.
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