Question
Find the value of 1 unit.
  1. 9 u + 70 = 610
  2. 70 + 9 u = 610
  3. 8 u - 60 = 180
  4. 180 = 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. 9 u + 70 = 610
  2. 70 + 9 u = 610
  3. 8 u - 60 = 180
  4. 180 = 8 u - 60