Question
Find the value of 1 unit.
  1. 7 u + 3 = 5 u + 21
  2. 5 u + 20 = 7 u + 4
  3. 8 u - 15 = 2 u + 3
  4. 8 u - 13 = 4 u + 7
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. 7 u + 3 = 5 u + 21
  2. 5 u + 20 = 7 u + 4
  3. 8 u - 15 = 2 u + 3
  4. 8 u - 13 = 4 u + 7