Question
Find the value of 1 unit.
  1. 9 u - 13 = 3 - 7 u
  2. 3 - 7 u = 9 u - 13
  3. 4 u - 7 = 13 - 6 u
  4. 13 - 6 u = 4 u - 7
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 - 13 = 3 - 7 u
  2. 3 - 7 u = 9 u - 13
  3. 4 u - 7 = 13 - 6 u
  4. 13 - 6 u = 4 u - 7