Question
Find the value of 1 unit.
  1. 3 u - 21 = 6 - 6 u
  2. 6 - 6 u = 3 u - 21
  3. 6 u - 6 = 14 - 4 u
  4. 14 - 4 u = 6 u - 6
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. 3 u - 21 = 6 - 6 u
  2. 6 - 6 u = 3 u - 21
  3. 6 u - 6 = 14 - 4 u
  4. 14 - 4 u = 6 u - 6