Question
Find the value of 1 unit.
  1. 10 u + 2 = 1 u + 20
  2. 5 u + 19 = 7 u + 3
  3. 7 u - 20 = 4 u + 7
  4. 8 u - 8 = 5 u + 4
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. 10 u + 2 = 1 u + 20
  2. 5 u + 19 = 7 u + 3
  3. 7 u - 20 = 4 u + 7
  4. 8 u - 8 = 5 u + 4