Question
Find the value of 1 unit.
  1. 2 u + 20 = 180
  2. 20 + 2 u = 180
  3. 8 u - 90 = 710
  4. 710 = 8 u - 90
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. 2 u + 20 = 180
  2. 20 + 2 u = 180
  3. 8 u - 90 = 710
  4. 710 = 8 u - 90