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2.9-0.2x=1.2
We move all terms to the left:
2.9-0.2x-(1.2)=0
We add all the numbers together, and all the variables
-0.2x+1.7=0
We move all terms containing x to the left, all other terms to the right
-0.2x=-1.7
x=-1.7/-0.2
x=8+0.1/0.2
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