(x-30)⼀(180-x+30)=2⼀3怎样解?

2024-11-03 03:34:55
推荐回答(1个)
回答1:

(x-30) / (180-x+30)=2/3 可转换为
(x-30) * 3 = (180-x+30) * 2
3x - 90 = 360 - 2x + 60
5x = 510
x = 102