Question

Which is the correct solution for the following inequality: 9 ≤ 4x + 1 < 21

2 < x < 5
2 < x < 5

2 < x < 5
2 , <, x < 5

2 < x < 5

Answer 1

2<=x<5

Explanation:

first subtract one from all pieces, then divide by four. because you never divide by a negative so switching of sides is needed. Two is less than or equal to x which is less than five.