9-2x=7 5x解方程谁能帮我把过程写出了谢谢!

2025-06-29 14:00:48
推荐回答(2个)
回答1:

9-2x=75x
解:2x+75x=9
77x=9
x=9/77

回答2:

9-2X=7 2X=9-7=2 X=1 5X=5