4 s − 12 = − 5 s + 51 / + 12 4 s − 12 + 12 = − 5 s + 51 + 12 4 s = − 5 s + 63 / + 5 s 4 s + 5 s = − 5 s + 5 s + 63 9 s = 63 / : 9 9 s : 9 = 63 : 9 s = 7
4s-12=-5s+51 +12= +12 4s=-5s+63 +5s =+5s 9s=63 9/9=63/9 s=7
To solve the equation 4 s − 12 = − 5 s + 51 , we isolate s by adding 12 to both sides, then adding 5s to both sides, and finally dividing by 9 to get s = 7 .
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