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30x=40.20
We move all terms to the left:
30x-(40.20)=0
We add all the numbers together, and all the variables
30x-(40.2)=0
We add all the numbers together, and all the variables
30x-40.2=0
We move all terms containing x to the left, all other terms to the right
30x=40.2
x=40.2/30
x=1+1/2.9411764705882
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