作业帮2.2*(x-12)=4.62怎么解 1.26/（3+x）=1.75*0.2
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2.2*(x-12)=4.62怎么解 1.26/（3+x）=1.75*0.2
2.2*(x-12)=4.62怎么解 1.26/（3+x）=1.75*0.2
2.2*(x-12)=4.62怎么解 1.26/（3+x）=1.75*0.2
2.2*(x-12)=4.62
x-12=4.62÷2.2
x-12=21
x=21+12
x=33
1.26/（3+x）=1.75*0.2
1.26/(3+x)+0.35
3+x=1.26÷0.35
3+x=3.6
x=3.6-3
x=0.6
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2.2*(x-12)=4.62怎么解 1.26/（3+x）=1.75*0.2
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