Answer:
s = 2/3
Step-by-step explanation:
15(s - 3) = 12s - 43
15s - 45 = 12s - 43
15s - 12s = -43 + 45
3s = 2
s=2/3
distribution
15s-45=12s-43
minus 12s from both sides
3s-45=-43
add 45 to both sides
3s=2
divide both sides by 3
substitute to prove right
15(2/3-3)=12(2/3)-43
10-45=8-43
-35=-35
