3. Combine terms: 12a + 26b -4b – 16a
(a) 4a + 22b, (b) -28a + 30b, (c) -4a + 22b, (d) 28a + 30b.
First we simplify the equation:
12a+26b-4b-16a
=-4a+22b
Ad thus (c)-4a+22b is our final answer
Very similar approach:
\(12a + 26b -4b – 16a \implies 12 a - 16 a + 26 b - 4 b \implies -4a+22b\)
+47 
+230 
