Question
Find the value of 1 unit.
  1. 2 u + 50 = 70
  2. 50 + 2 u = 70
  3. 3 u - 70 = 230
  4. 230 = 3 u - 70
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. 2 u + 50 = 70
  2. 50 + 2 u = 70
  3. 3 u - 70 = 230
  4. 230 = 3 u - 70