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0.2x+0.3(3)=1.3
We move all terms to the left:
0.2x+0.3(3)-(1.3)=0
We add all the numbers together, and all the variables
0.2x-0.97=0
We move all terms containing x to the left, all other terms to the right
0.2x=0.97
x=0.97/0.2
x=4+0.17/0.2
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