Solving Equations Given a Specific Value

|x-3|=40

• x = 43, x = -37

• x = 43, x = -43

• x = -43, x = 37

• x = 43

|x+7|=12

• x = -5, x = 19

• x = 5, x = -19

• x = 5, x = -5

• x = 12, x = -7

|v + 8| − 5 = 2 

• {-1,-15}

• {-1,-5}

• {-15,15}

• No Solution

Solve -4 = 5x + 6

Mathematical Equivalence

ON

Tags

CCSS.7.EE.B.4A

|-2 - 4n| = 34

• n = -9, n = 8

• n = 9, n = 8

• n = -9

• n = 8

|2a - 10| = 6

• a = 8, a = 5

• a = 2

• a = 8

• a = 8, a = 2

3| −8x| + 8 = 80

• {-7/3, 7/3}

• {-3,3}

• {11/3,-11/3}

• No Solution

8|-2x + 4| = 96

• x = -4, x = 8

• x = -4

• x = -4, x = -8

• x = 4, x = 8

∣ 2x + 9 ∣ = 15

• x = 3 

• x = 3
  x = -6

• x = 3
  x = -12

• x = 6
  x = -12

Solve for z

11 = 6|-2z|- 5

• +4/3, -4/3

• 1/2, -1/2

• -4/3, 1/2

• 5.5, -5.5