Question
Find the value of 1 unit.
  1. 4 u + 30 = 310
  2. 30 + 4 u = 310
  3. 5 u - 60 = 240
  4. 240 = 5 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. 4 u + 30 = 310
  2. 30 + 4 u = 310
  3. 5 u - 60 = 240
  4. 240 = 5 u - 60