Question
Find the value of 1 unit.
  1. 9 u + 60 = 600
  2. 60 + 9 u = 600
  3. 6 u - 40 = 440
  4. 440 = 6 u - 40
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 + 60 = 600
  2. 60 + 9 u = 600
  3. 6 u - 40 = 440
  4. 440 = 6 u - 40