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1.4x=2.1
We move all terms to the left:
1.4x-(2.1)=0
We add all the numbers together, and all the variables
1.4x-2.1=0
We move all terms containing x to the left, all other terms to the right
1.4x=2.1
x=2.1/1.4
x=1+0.7/1.4
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