Question
Find the value of 1 unit.
  1. 4 u - 28 = 20
  2. 9 u - 30 = 3 u
  3. 7 = 2 u - 17
  4. 4 u = 11 u - 49
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. 4 u - 28 = 20
  2. 9 u - 30 = 3 u
  3. 7 = 2 u - 17
  4. 4 u = 11 u - 49