2x+3y=1,当取何值时,-2≤y≤5,求x的值

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/19 21:13:29
2x+3y=1,当取何值时,-2≤y≤5,求x的值2x+3y=1,当取何值时,-2≤y≤5,求x的值2x+3y=1,当取何值时,-2≤y≤5,求x的值2x+3y=13y=1-2x-2≤y≤5-6≤3y

2x+3y=1,当取何值时,-2≤y≤5,求x的值
2x+3y=1,当取何值时,-2≤y≤5,求x的值

2x+3y=1,当取何值时,-2≤y≤5,求x的值
2x + 3y = 1
3y = 1 - 2x
-2 ≤ y ≤ 5
-6 ≤ 3y ≤ 15
-6 ≤ 1 - 2x ≤ 15
-7 ≤ x ≤ 7/2

2.5小于等于x大于等于-8