Question
Find the value of 1 unit.
  1. 6 u + 10 = 490
  2. 10 + 6 u = 490
  3. 9 u - 60 = 120
  4. 120 = 9 u - 60
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 + 10 = 490
  2. 10 + 6 u = 490
  3. 9 u - 60 = 120
  4. 120 = 9 u - 60