Question
Find the value of 1 unit.
  1. 2 u + 30 = 130
  2. 30 + 2 u = 130
  3. 8 u - 60 = 580
  4. 580 = 8 u - 60
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 + 30 = 130
  2. 30 + 2 u = 130
  3. 8 u - 60 = 580
  4. 580 = 8 u - 60