Question
Find the value of 1 unit.
  1. 9 u + 50 = 500
  2. 50 + 9 u = 500
  3. 2 u - 50 = 130
  4. 130 = 2 u - 50
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 + 50 = 500
  2. 50 + 9 u = 500
  3. 2 u - 50 = 130
  4. 130 = 2 u - 50