Question
Find the value of 1 unit.
  1. 2 u - 18 = 20
  2. 10 u - 21 = 3 u
  3. 3 = 9 u - 24
  4. 5 u = 11 u - 36
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 - 18 = 20
  2. 10 u - 21 = 3 u
  3. 3 = 9 u - 24
  4. 5 u = 11 u - 36