Question
Find the value of 1 unit.
  1. 5 u + 30 = 130
  2. 30 + 5 u = 130
  3. 3 u - 30 = 60
  4. 60 = 3 u - 30
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. 5 u + 30 = 130
  2. 30 + 5 u = 130
  3. 3 u - 30 = 60
  4. 60 = 3 u - 30