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1.5x+x=2.10
We move all terms to the left:
1.5x+x-(2.10)=0
We add all the numbers together, and all the variables
1.5x+x-(2.1)=0
We add all the numbers together, and all the variables
2.5x-2.1=0
We move all terms containing x to the left, all other terms to the right
2.5x=2.1
x=2.1/2.5
x=1/1.1904761904762
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