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0.3+1x=1.2+0.4
We move all terms to the left:
0.3+1x-(1.2+0.4)=0
We add all the numbers together, and all the variables
1x+0.3-(1.6)=0
We add all the numbers together, and all the variables
x-1.3=0
We move all terms containing x to the left, all other terms to the right
x=1.3
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