2x/0.3+8/3-(1.4-3x)/0.2=0 化简:2x/(3/10)+8/3-(1.4-3x)/(1/5)=0 20x/3+8/3-5(1.4-3x)=0 (20x+8)/3=5(1.4-3x) 20x+8=3(7-15x) 20x+8=21-45x 20x+45x=21-8 65x=13 x=13÷65 x=0.2
2x/0.3+8/3-(1.4-3x)/0.2=0
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