Question
Find the value of 1 unit.
  1. 5 u + 80 = 580
  2. 80 + 5 u = 580
  3. 8 u - 40 = 760
  4. 760 = 8 u - 40
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 + 80 = 580
  2. 80 + 5 u = 580
  3. 8 u - 40 = 760
  4. 760 = 8 u - 40