Answer:
(a) 4*7x-4*2 and 28x-8 (b) 12y + 9y and 21 y
Step-by-step explanation:
The first answer for a shows the 4 being distributed. The second answer for a is after you multiply the four to seven and -2. The first answer for b is 3y + 6y combined without being added to 12y. The second answer for b shows all three added together.
