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0.3x-0.2(4)=1.9
We move all terms to the left:
0.3x-0.2(4)-(1.9)=0
We add all the numbers together, and all the variables
0.3x-2.14=0
We move all terms containing x to the left, all other terms to the right
0.3x=2.14
x=2.14/0.3
x=7+0.04/0.3
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