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0.3x+0.2x=3.0
We move all terms to the left:
0.3x+0.2x-(3.0)=0
We add all the numbers together, and all the variables
0.3x+0.2x-3=0
We add all the numbers together, and all the variables
0.5x-3=0
We move all terms containing x to the left, all other terms to the right
0.5x=3
x=3/0.5
x=6
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