Question

Solve the inequality -1+4y<_31.

Answer 1

`\large\boxed{y\leq8\to\\ y\leq8\\to y\in(-\infty,\ 8]}`

Explanation:

`-1+4y\leq31\qquad\text{add 1 to both sides}\\\\-1+1+4y\leq31+1\\\\4y\leq32\qquad\text{divide both sides by 4}\\\\(4y)/(4)\leq(32)/(4)\\\\y\leq8`