Question
Find the value of 1 unit.
  1. 9 u + 9 = 4 u + 19
  2. 3 u + 11 = 8 u + 6
  3. 10 u - 21 = 5 u + 9
  4. 12 u - 18 = 5 u + 3
4 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

(c)

Click button first when a symbol is required. X

(d)

Click button first when a symbol is required. X

Find the value of 1 unit.
  1. 9 u + 9 = 4 u + 19
  2. 3 u + 11 = 8 u + 6
  3. 10 u - 21 = 5 u + 9
  4. 12 u - 18 = 5 u + 3