a)-21x + 12 + 2x - 16x - 4
Combine like terms:-21x + 2x - 16x - 4 + 12-35x + 8
b)6x - 6 - 7x - 7
Combine like terms:6x - 7x - 6 - 7-x - 13
a)
-21x + 12 + 2x - 16x - 4
Combine like terms:
-21x + 2x - 16x - 4 + 12
-35x + 8
b)
6x - 6 - 7x - 7
Combine like terms:
6x - 7x - 6 - 7
-x - 13