Question
Find the value of 1 unit.
  1. 6 u + 50 = 650
  2. 50 + 6 u = 650
  3. 8 u - 20 = 620
  4. 620 = 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. 6 u + 50 = 650
  2. 50 + 6 u = 650
  3. 8 u - 20 = 620
  4. 620 = 8 u - 20