Review May 2, 2022

Solve for x l 2x−1 l = 9

Hint: break it into two different equations

• x = 5 and x =-4
• x = 5 and x = -5
• Only x = 5
• No Solution

Solve for x l 2x−1 l +4 = 8 

Hint: isolate the absolute value, then break it into two different equations

• x = 2.5 and x = -1.5
• x = 2 and x = -1
• x = -2 and x = 9
• No Solution

Evaluate each expression.

| x + 9 | = -5

• x = -14

• x = -4

• x = -14 and x = -4

• no solution

|x| > 7 Is this an "and" or an "or"?

• And

• Or

|2x| ≤ 14; Is this an AND or an OR?

• AND

• OR

• 13