Question
Find the value of 1 unit.
  1. 2 u - 28 = 12
  2. 9 u - 24 = 3 u
  3. 3 = 4 u - 21
  4. 7 u = 11 u - 16
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. 2 u - 28 = 12
  2. 9 u - 24 = 3 u
  3. 3 = 4 u - 21
  4. 7 u = 11 u - 16