Question
Find the value of 1 unit.
  1. 4 u + 30 = 230
  2. 30 + 4 u = 230
  3. 2 u - 30 = 70
  4. 70 = 2 u - 30
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. 4 u + 30 = 230
  2. 30 + 4 u = 230
  3. 2 u - 30 = 70
  4. 70 = 2 u - 30