Question
Find the value of 1 unit.
  1. 8 u + 80 = 720
  2. 80 + 8 u = 720
  3. 2 u - 90 = 50
  4. 50 = 2 u - 90
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 + 80 = 720
  2. 80 + 8 u = 720
  3. 2 u - 90 = 50
  4. 50 = 2 u - 90