Identify Operation: Identify the operation needed to isolate u in the inequality u + 6 < 9.Since 6 is being added to u, we should use subtraction to isolate u.
Subtract 6: Subtract 6 from both sides of the inequality to solve for u.u + 6 - 6 < 9 - 6u < 3
More problems from Solve one-step linear inequalities: addition and subtraction