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8()+15=5.50(S)+49.95
We move all terms to the left:
8()+15-(5.50(S)+49.95)=0
We add all the numbers together, and all the variables
-(5.50S+49.95)=0
We get rid of parentheses
-5.50S-49.95=0
We add all the numbers together, and all the variables
-5.5S-49.95=0
We move all terms containing S to the left, all other terms to the right
-5.5S=49.95
S=49.95/-5.5
S=-9+0.45/5.5
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