Question
Find the value of 1 unit.
  1. 9 u + 30 = 300
  2. 30 + 9 u = 300
  3. 7 u - 30 = 320
  4. 320 = 7 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. 9 u + 30 = 300
  2. 30 + 9 u = 300
  3. 7 u - 30 = 320
  4. 320 = 7 u - 30