Answer:
{ x ∈ R | x ≥ 9 }
Step-by-step explanation:
we have
[tex]2x-7 \geq 11[/tex]
solve for x
Adds 7 both sides
[tex]2x\geq 11+7[/tex]
[tex]2x\geq 18[/tex]
Divide by 2 both sides
[tex]x\geq 18/2[/tex]
[tex]x\geq 9[/tex]
The solution is the interval -----> [9,∞)
In set builder notation
{ x ∈ R | x ≥ 9 }
All real numbers greater than or equal to 9
