Solve the Inequality for b b-20<=-10

$b - 20 \leq - 10$

Add $20$ to both sides of the inequality.

$b \leq - 10 + 20$

Add $- 10$ and $20$ .

$b \leq 10$

The result can be shown in multiple forms.

Inequality Form:

$b \leq 10$

Interval Notation:

$(- \infty, 10]$