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0.50x+0.45(30)=22.5
We move all terms to the left:
0.50x+0.45(30)-(22.5)=0
We add all the numbers together, and all the variables
0.50x-22.047=0
We move all terms containing x to the left, all other terms to the right
0.50x=22.047
x=22.047/0.50
x=44+0.047000000000001/0.50
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