(56-x)x1右七分之二=40 x怎么解?

2025-06-27 01:48:28
推荐回答(1个)
回答1:

(56-x)x1又2/7=40
解:(56-x)x 9/7=40
56-x=40÷9/7
56-x=280/9
x=56-280/9
x=56-31又1/9
x=24又8/9