Which of the numbers 1, 2, and 3 is a solution of 2x+1≥7 ?(1 po

Answer 1

To determine which of the numbers 1, 2, and 3 is a solution of the inequality 2x + 1 ≥ 7, you can substitute each value into the inequality and see which ones make the inequality true.

For x = 1:
2(1) + 1 ≥ 7
2 + 1 ≥ 7
3 ≥ 7
This is false, so 1 is not a solution.

For x = 2:
2(2) + 1 ≥ 7
4 + 1 ≥ 7
5 ≥ 7
This is also false, so 2 is not a solution.

For x = 3:
2(3) + 1 ≥ 7
6 + 1 ≥ 7
7 ≥ 7
This inequality is true, so 3 is a solution.

Therefore, the number 3 is the only solution of the inequality 2x + 1 ≥ 7.