Lesson 2.5-3.1

Solve for x
l 5x l = 40

• x = 8 and x =-8
• x = 35 and x = -35
• Only x = 8
• No Solution

Solve for x
l 2x−1 l = 9

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

|8 - 4x| = 16

• x = -2, x = -6
• x = 2 , x = 24
• x = -2, x = 6
• No Solution

True or False: Is x = 4 a solution to |x + 5| = -9

• True
• False

|v + 8| − 5 = 2 

• {-1,-15}
• {-1,-5}
• {-15,15}
• No Solution

|v + 8| − 5 = 2 

• {-1,-15}
• {-1,-5}
• {-15,15}
• No Solution

IR = V
(solve for R) 

• R = IV
• R = I/V
• R = V/I
• R = V - I

W = A/L
 (solve for A) 

• A = W/L
• A = LW
• A = W + L
• A = W - L

A - B = C

(solve for A)

• A = C - B

• A = C + B

• A - C = B

• B = A - C

-2 = 4r + s solve for s.

• s = -2 + 4r

• s = 2 - 4r

• s = -2 - 4r

• s = 2 + 4r