2(0.9-x)+4=4.3 怎么解

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2(0.9-x)+4=4.3怎么解2(0.9-x)+4=4.3怎么解2(0.9-x)+4=4.3怎么解2(0.9-x)+4=4.32(0.9-x)=4.3-42(0.9-x)=0.30.9-x=0.3

2(0.9-x)+4=4.3 怎么解
2(0.9-x)+4=4.3 怎么解

2(0.9-x)+4=4.3 怎么解
2(0.9-x)+4=4.3
2(0.9-x)=4.3-4
2(0.9-x)=0.3
0.9-x=0.3/2
0.9-x=0.15
0.9-0.15=x
x=0.75