Question

Twice a number x exceed 5 at least by 4. find the possible value of x.

Answer 1

`x \ge 4.5`

Explanation:

The number 2x is larger than 5, so 2x - 5 is the difference between 2x and 5. This difference is at least (greater than or equal to) 4.

`2x-5 \ge 4\\\\2x \ge 9\\\\x \ge 4.5`

Answer 2

5?

Explanation:

2x › 5 (buy at least 4)

so you can just start plugging numbers in.

I used 5, 5 times 2 is 10 which is 5 more that 5, which does met the quota.