2y and 2x
3x and 2x
2y and 3y
3x and 3y
3 and 3m
–9m and –8
3 and –8
–9m and 3m
8r and –4r
8 and 8r
8r and 8
8r and 3s
3s and –3s
+4
–11
–9x
+2x
5x
–4y
+3y
–8
x terms
y terms
constant terms
8b
–2a
–11c
+3b
–4a
5b
+8a
–2c
–4c
a terms
b terms
c terms
4f + 8
12f + 8
4f + 2
12f + 2
11r + 11
11r – 11
–11r + 11
–11r – 11