解方程;x-2⼀3=1⼀5 x+1⼀3=1⼀2+1⼀6 x-5⼀12=3⼀8 4⼀7-x=1⼀3 14.5-3.1x=11.4

2025-02-03 06:08:32
推荐回答(2个)
回答1:

x-2/3=1/5
解:x=1/5+2/3
x=13/15
x+1/3=1/2+1/6
解:x+1/3=2/3
x=2/3-1/3
x=1/3
x-5/12=3/8
解: x=3/8+5/12
x=19/24
4/7-x=1/3
解:x=4/7-1/3
x=5/21
14.5-3.1x=11.4
解: 3.1x=14.5-11.4
3.1x=3.1
x=3.1÷3.1
x=1

回答2:

x-2/3=1/5
解:x=1/5+2/3
x=13/15
x+1/3=1/2+1/6
解:x+1/3=2/3