Question
Find the value of 1 unit.
  1. 9 u - 20 = 5 u - 8
  2. 5 u - 7 = 7 u - 11
  3. 9 - 3 u = 27 - 6 u
  4. 18 - 3 u = 6 - 1 u
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 - 20 = 5 u - 8
  2. 5 u - 7 = 7 u - 11
  3. 9 - 3 u = 27 - 6 u
  4. 18 - 3 u = 6 - 1 u