Question
Find the value of 1 unit.
  1. 5 u + 80 = 480
  2. 80 + 5 u = 480
  3. 8 u - 80 = 720
  4. 720 = 8 u - 80
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. 5 u + 80 = 480
  2. 80 + 5 u = 480
  3. 8 u - 80 = 720
  4. 720 = 8 u - 80