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30%x=120x-60%x=160120x-20x=40x+1/5x=24050%x-33%x=34x+130%x=460
2024-12-25 12:11:14
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回答1:

30%x=120 x=120÷30%=120x100/30=400
x-60%x=160 40%x=160 x=160÷40%=160x100/40=400
120x-20x=40 100x=40 x=40÷100=40%
x+1/5x=240 6/5x=240 x=240÷6/5=240x5/6=200
50%x-33%x=34 17%x=34 x=34÷17%=34x100/17=200
x+130%x=460 230%x=460 x=460÷230%=460x100/230=200