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.50x+0.45(30)=38.5
We move all terms to the left:
.50x+0.45(30)-(38.5)=0
We add all the numbers together, and all the variables
.50x-38.047=0
We move all terms containing x to the left, all other terms to the right
.50x=38.047
x=38.047/.50
x=76+0.046999999999997/.50
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