解方程2X-17=7X+335X+3=X-1
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/07 02:19:22
![解方程2X-17=7X+335X+3=X-1](/uploads/image/z/113052-12-2.jpg?t=%E8%A7%A3%E6%96%B9%E7%A8%8B2X-17%3D7X%2B335X%2B3%3DX-1)
x){|i;6545666@MR>V` *;"W@iH9LO, $ab`K^r]SW$A]aFBDRc^kTd i =P#tV5)(At@y&@ \9 ʃ
解方程2X-17=7X+335X+3=X-1
解方程2X-17=7X+33
5X+3=X-1
解方程2X-17=7X+335X+3=X-1
2X-17-7x=7X+33-7x
-5x-17=33
-5x-17+17=33+17
-5x=50
两边除-5,得x=-10
5X=-50
X=-10
7x-2x=33+17
5x=-50
x=-10
2X-17=7X+33
7X-2X=-33-17
5X=-50
X=-10
5X+3=X-1
5X-X=-3-1
4X=-4
X=-1