2. (3x+7)⼀(12)=-(7x-2)⼀(18)+1

2025-06-28 17:39:38
推荐回答(2个)
回答1:

方法如下,

请作参考:

回答2:

(3x+7)/(12)=-(7x-2)/(18)+1
3 (3x+7)=-2(7x-2)+36
9x+21=-14x+4+36
9x+14x=4+36-21

23x=19
x=19/23