Question
Find the value of 1 unit.
  1. 7 u - 21 = 9 - 3 u
  2. 9 - 3 u = 7 u - 21
  3. 2 u - 3 = 29 - 2 u
  4. 29 - 2 u = 2 u - 3
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. 7 u - 21 = 9 - 3 u
  2. 9 - 3 u = 7 u - 21
  3. 2 u - 3 = 29 - 2 u
  4. 29 - 2 u = 2 u - 3