Question
Find the value of 1 unit.
  1. 6 u - 21 = 4 u - 7
  2. 5 u - 8 = 8 u - 11
  3. 9 - 5 u = 19 - 7 u
  4. 13 - 7 u = 5 - 3 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. 6 u - 21 = 4 u - 7
  2. 5 u - 8 = 8 u - 11
  3. 9 - 5 u = 19 - 7 u
  4. 13 - 7 u = 5 - 3 u