Question
Find the value of 1 unit.
  1. 2 u + 70 = 230
  2. 70 + 2 u = 230
  3. 3 u - 80 = 70
  4. 70 = 3 u - 80
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 + 70 = 230
  2. 70 + 2 u = 230
  3. 3 u - 80 = 70
  4. 70 = 3 u - 80