9(x + 2).
7 ( n - 4 )
10 ( 6 - r)
3 ( 5c + 7)
3(4- y).
6( 3+ x).
-8(2x + 6). -
9(x) + 9 (2).
7 ( n)- 7 (4 )
10(6) - 10(r)
3(5c) + 3(7)
3(4) - 3(y)
6(3) + 6(x)
-8(2x) - 8(6)
9x + 18
7n - 28
60 - 10r
15c + 21
12 - 3y
18 + 6x
-16x - 48
9.4m questions
12.1m answers