The Total solution for NCERT class 6-12
On computing we get
= 15x ≥ 2 (4x –1)
= 15x ≥ 8x -2
= 15x -8x ≥ 8x -2-8x
= 7x ≥ -2
= x ≥ -2/7
Now, the graphicalrepresentation of the solution is as follows: