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解方程: 9x/0.7=9; 25-3x=19; 4(x-9)=4; x-18=4=8; 5.6x-4.5/3=5.5; (7-1.2)x=1.47*2
3.5x-14.5=3.5-x
列:
8x-1.24*4=23;
1.24*4+3.2=8x
8.16=8x
x=1.02
人气:493 ℃ 时间:2019-08-18 17:05:02
解答
9x/0.7=9;9x=6.3x=0.725-3x=193x=6x=24(x-9)=4x-9=1x=10x-18-4=8x-22=8x=305.6x-4.5/3=5.55.6x-1.5=5.55.6x=7x=1.25(7-1.4)x=1.47*25.6x=2.94x=0.5253.5x-14.5=3.5-x4.5x=18x=48x-1.24*4=238x-4.96=238x=27.96x...(7-1.2)x=1.47*2(7-1.2)x=1.47*25.8x=2.94x=1470/29此题数字有误,所以修改了:(7-1.4)x=1.47*25.6x=2.94x=0.525
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