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5.6-0.31x=3.12
We move all terms to the left:
5.6-0.31x-(3.12)=0
We add all the numbers together, and all the variables
-0.31x+2.48=0
We move all terms containing x to the left, all other terms to the right
-0.31x=-2.48
x=-2.48/-0.31
x=+8
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