Question
Find the value of 1 unit.
  1. 3 u + 100 = 220
  2. 100 + 3 u = 220
  3. 3 u - 40 = 110
  4. 110 = 3 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. 3 u + 100 = 220
  2. 100 + 3 u = 220
  3. 3 u - 40 = 110
  4. 110 = 3 u - 40