Question
Find the value of 1 unit.
  1. 3 u - 28 = 20
  2. 12 u - 27 = 3 u
  3. 9 = 2 u - 21
  4. 5 u = 13 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. 3 u - 28 = 20
  2. 12 u - 27 = 3 u
  3. 9 = 2 u - 21
  4. 5 u = 13 u - 16