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.7x-3.5=-1.4
We move all terms to the left:
.7x-3.5-(-1.4)=0
We add all the numbers together, and all the variables
.7x-2.1=0
We move all terms containing x to the left, all other terms to the right
.7x=2.1
x=2.1/.7
x=3+4.4408920985006E-16/.7
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