Question

please send me the right answer to become brain list​

Answer 1

3x - 1 ≤ x + 3 ≤ 4x

So first,

3x - 1 ≤ x + 3

2x ≤ 4

x ≤ 2

Then,

x + 3 ≤ 4x

3x ≥ 3

x ≥ 1

So , the answer is  1 ≤ x ≤ 2 on number line,