Question
Find the value of 1 unit.
  1. 8 u + 7 = 3 u + 12
  2. 4 u + 12 = 6 u + 8
  3. 9 u - 21 = 1 u + 3
  4. 8 u - 21 = 2 u + 9
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 + 7 = 3 u + 12
  2. 4 u + 12 = 6 u + 8
  3. 9 u - 21 = 1 u + 3
  4. 8 u - 21 = 2 u + 9