Question
Find the value of 1 unit.
  1. 2 u + 70 = 190
  2. 70 + 2 u = 190
  3. 9 u - 70 = 110
  4. 110 = 9 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 + 70 = 190
  2. 70 + 2 u = 190
  3. 9 u - 70 = 110
  4. 110 = 9 u - 70