Question

Find the solution set for the following problem.Two times a number increased by one is at least seven. {xl x>-3) {x| x >-3) {xl x < 3) {x| x > 3]

Answer 1

Step 1

Write an expression for the question

Let the number be x

2x + 1 ≥ 7

2x ≥ 7 -1

2x ≥ 6

2x/2 ≥ 6/2

x ≥ 3

Step 2

Write the solution set for the problem

x ≥ 3 Option D