Question

How do you solve and graph `a+7<10`?

Answer 1

`a<3`
https://www.wolframalpha.com/input/?i=a%3C3&rawformassumption=%7B%22MC%22,+%22%3C3%22%7D+-%3E+%7B%22MathOperator%22%7D

Explanation:

Subtract 7 from both sides to get
`a<3`

Place an open dot on `a=3` because the point does not satisfy the inequality. Then draw an arrow in the `-\infty` direction (left) because `a` is going to be less than 3.