Question
Find the value of 1 unit.
  1. 1 u + 68 = 123
  2. 4 + 1 u = 7
  3. 15 = 1 u - 5
  4. 17 = 7 + 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 + 68 = 123
  2. 4 + 1 u = 7
  3. 15 = 1 u - 5
  4. 17 = 7 + 1 u