Question

How do you solve and graph `2(n-4)<=6`?

Answer 1

`n\leq7`

Explanation:

You simply need to:

• Expand the left hand side, to get `2n-8\leq 6`
• Add `8` to both sides: `2n-8+8 \leq 6+8`, which leads to `2n \leq 14`
• Divide both sides by `2`, to have `n \leq 7`

Since this is a one dimensional problem, you can graph it by drawing a number line, and considering all the numbers before `7` on that line