Math 7 April 24

∣ 2x + 9 ∣ = 15

• x = 3 

• x = 3
  x = -6

• x = 3
  x = -12

• x = 6
  x = -12

|6 - 2f| = -5

• -11/2, -1/2

• -5, 5

• 1, 3

• ⊘ No solution

|−4 + 5x| = 16

• {16/5,12/5}

• {4,-5}

• {-12/5, 4}

• 4

∣ 2x + 9 ∣ = 15

• x = 3 

• x = 3
  x = -6

• x = 3
  x = -12

• x = 6
  x = -12

| x – 3 |= 0

• 3

• -3

• {-3, 3}

• no solution

Solve:

• {24}

• {-6, -8}

• {16, 4}

• {24, -24}

• {4, -4}

• {9, -9}

• {5, -9}

• {13, -1}

• {80/9, -8}

• {7, -3}

• {8, -39/4}

• {-11/3, 9}

• {37/4}

• {20/3, -7}

• {5, -61/9}

• {37/4, -9}

Solve:
|2x-3|=5

• x=4

• x=4 and x=-4

• x=4 and x=-1

• x=14