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0.5x+0.45(30)=45.5
We move all terms to the left:
0.5x+0.45(30)-(45.5)=0
We add all the numbers together, and all the variables
0.5x-45.047=0
We move all terms containing x to the left, all other terms to the right
0.5x=45.047
x=45.047/0.5
x=90+0.046999999999997/0.5
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