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x0.02-4-x0.01-2=-6.3
We move all terms to the left:
x0.02-4-x0.01-2-(-6.3)=0
We add all the numbers together, and all the variables
x0.02-x0.01+0.3=0
We move all terms containing x to the left, all other terms to the right
x0.02-x0.01=-0.3
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