Question

Which of the following is not a way to represent the solution of the inequality 2(x + 1) greater than or equal to 20?

Answer 1

$2x+2 \geq 20 2x \geq 18 x \geq 9 9 \leq x$ which  is the same with the one above

The answer to your question is C.A number line with a closed circle on 9 and shading to the left. I hope that this is the answer that you were looking for and it has helped you.

Answer 2

Answer:

option C

A number line with a closed circle on  $9$ and shading to the left

Step-by-step explanation:

we have

$2(x+1)\geq 20$

solve for x

$2x+2\geq 20$

Subtract $2$ both sides

$2x+2-2\geq 20-2$

$2x\geq 18$

Divide by $2$ both sides

$x\geq 9$ --------> is equivalent to $9 \leq x$

The solution is the interval--------> [9,∞)

All real numbers greater than or equal to $9$

A number line with a closed circle on  $9$ and shading to the right