First line because 4(2a+1)=8a+4 and 9a+4-(8a+4)= a
Second line because a times 2 =2a and 2a+1-2a=1
<span>Although the second equality is more or less obvious since 2a+1 leaves a remainder of 1 when divided by a.</span>
9
Think of it like you are going up so -11+20=9
Answer:
the answer is 42
Step-by-step explanation:
a triangle has 3 sides so if you multiply 14 by 3 then you will have the answer for you perimeter
Hope this helps:)
Can I get Branliest?
Answer:
The answer is -4m + 4
Step-by-step explanation:
you just distribute -4