Question
Find the value of 1 unit.
  1. 2 u + 60 = 240
  2. 60 + 2 u = 240
  3. 9 u - 90 = 810
  4. 810 = 9 u - 90
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 + 60 = 240
  2. 60 + 2 u = 240
  3. 9 u - 90 = 810
  4. 810 = 9 u - 90