Question
Find the value of 1 unit.
  1. 8 u + 20 = 740
  2. 20 + 8 u = 740
  3. 9 u - 20 = 70
  4. 70 = 9 u - 20
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. 8 u + 20 = 740
  2. 20 + 8 u = 740
  3. 9 u - 20 = 70
  4. 70 = 9 u - 20