Question
Find the value of 1 unit.
  1. 3 u + 10 = 130
  2. 10 + 3 u = 130
  3. 8 u - 20 = 300
  4. 300 = 8 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. 3 u + 10 = 130
  2. 10 + 3 u = 130
  3. 8 u - 20 = 300
  4. 300 = 8 u - 20