Remark
Just a very small point. 25 points is what you pay to give us 13. That probably is the maximum payment anyone should make.
Comment
What you are looking for here is the value of x below which you cannot go, because if you do, you will be taking the square root of a minus number. So the inequality that you must solve is 3x + 3 ≥ 0
Solution
3x + 3 ≥ 0 Subtract 3 from both sides.
3x ≥ - 3 Divide by 3
x ≥ -3/3
x ≥ -1
What this is telling you is that x must be any real value greater than or equal to - 1
