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.5x+.45(30)=36.5
We move all terms to the left:
.5x+.45(30)-(36.5)=0
We add all the numbers together, and all the variables
.5x-36.047=0
We move all terms containing x to the left, all other terms to the right
.5x=36.047
x=36.047/.5
x=72+0.047/.5
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