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数学
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1.解方程. / 4X20=56、1.8+7X=3.9、5X-8.3=10.7
人气:178 ℃ 时间:2019-09-25 22:34:35
解答
4X+20=56
4X=56-20
4X=26
X=26/4
X=6.5
1.8+7X=3.9、
7X=3.9-1.8
7X=2.1
X=2.1/7
X=0.3
5X-8.3=10.7
5X=10.7+8.3
5X=19
X=19/5
X=9.5
不是说要采纳的吗你这个19/5是什么意思我不明白啊5X-8.3=10.75X=10.7+8.35X=19X=19÷5X=3.8哦哦知道了我马上采纳哈,我一会还要出好多你要继续回答哦
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