许雄集:
(1)12x-4x=0.96
8x=0.96
x=0.12
(2) 7x+3X4=40
7x+12=40
7x=28
x=4
(3) 8x-x=11.9
7x=11.9
x=1.7
(4)5x-3.7=8.8
5x=12.5
x=2.5
祝好,再见.
解方程12x-4x=0.96 7x+3X4=40 8x-x=11.9 5x-3.7=8.8
解方程12x-4x=0.96 7x+3X4=40 8x-x=11.9 5x-3.7=8.8
数学人气:388 ℃时间:2020-03-29 08:29:34
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