Question
Find the value of 1 unit.
  1. 6 u - 21 = 3 u - 6
  2. 2 u - 6 = 7 u - 21
  3. 9 - 3 u = 15 - 6 u
  4. 39 - 8 u = 7 - 4 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 = 3 u - 6
  2. 2 u - 6 = 7 u - 21
  3. 9 - 3 u = 15 - 6 u
  4. 39 - 8 u = 7 - 4 u