Question
(a) Simplify 20f + 9 - 7f - 4.
(b) Subtract 6a + 9 from 11a + 17.
3 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

(a) Simplify 20f + 9 - 7f - 4.
(b) Subtract 6a + 9 from 11a + 17.