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30x=0.90
We move all terms to the left:
30x-(0.90)=0
We add all the numbers together, and all the variables
30x-(0.9)=0
We add all the numbers together, and all the variables
30x-0.9=0
We move all terms containing x to the left, all other terms to the right
30x=0.9
x=0.9/30
x=0.9/30
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