Answer:
Step-by-step explanation:
y + 9 + 7(y + 9)...first we have to get rid of those parenthesis. we can do this by distributing the 7 thru the parenthesis.
y + 9 + 7y + 63
now lets gather our like terms..
y + 7y = 8y
63 + 9 = 72
so we have : 8y + 72 <===
