Question
Find the value of 1 unit.
  1. 1 u + 6 = 16
  2. 2 + 1 u = 13
  3. 19 = 1 u - 2
  4. 13 = 3 + 1 u
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. 1 u + 6 = 16
  2. 2 + 1 u = 13
  3. 19 = 1 u - 2
  4. 13 = 3 + 1 u