7X+3=24 34.2—0.6X=0 8X25-2X=12.6 13X-10X=0.6
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7X+3=24 34.2—0.6X=0 8X25-2X=12.6 13X-10X=0.6
7X+3=24 34.2—0.6X=0 8X25-2X=12.6 13X-10X=0.6
7X+3=24 34.2—0.6X=0 8X25-2X=12.6 13X-10X=0.6
喜欢久好1002 ,
7X+3=24
7x=24-3
x=21÷7
x=3
34.2—0.6X=0
0.6x=34.2
x=34.2÷0.6
x=57
8X25-2X=12.6
200-2x=12.6
2x=100-12.6
x=87.4÷2
x=43.7
13X-10X=0.6
3x=0.6
x=0.6÷3
x=0.2
7X+3=24: 7x=21, x=3.
34.2—0.6X=0: 0.6x=34.2, x=57.
8X25-2X=12.6: 2x=100-12.6, 2x=87.4, x=48.7.
13X-10X=0.6: 3x=0.6, x=0.2.
7 x + 3 = 24
7 x = 24 - 3
7 x = 21
x = 21 ÷ 7
x = 3
34.2 - 0.6 x = 0
34.2 = 0.6 x
x = 34.2 ÷ 0.6
x = 342 ÷ 6
全部展开
7 x + 3 = 24
7 x = 24 - 3
7 x = 21
x = 21 ÷ 7
x = 3
34.2 - 0.6 x = 0
34.2 = 0.6 x
x = 34.2 ÷ 0.6
x = 342 ÷ 6
x = 57
8 × 25 - 2 x = 12.6
200 - 2 x = 12.6
200 - 12.6 = 2 x
187.4 = 2 x
x = 187.4 ÷ 2
x = 93.7
13 x - 10 x = 0.6
3 x = 0.6
x = 0.6 ÷ 3
x = 0.2
【俊狼猎英】团队为您解答
收起
1、7x=21 x=3
2、x=34.2/0.6=57
3、200-2x=12.6 2x=187.4 x=98.7
4、3x=0.6 x=0.2
一定要采纳啊
你采纳的答案第三个是错误的楼主!!
百度很强大
x=3 x=57 x== 143.7 x=0.2