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we can equate vertex with vertex then;
a=p
b=q
c=r
for starters

yeah but Im not sure how to do that

what is the equation for b?

5v+6

what is the equation for q?
since b = q then its also true that:
(equation for b) = (equation for q)

good, and can you finish the setup? ill help you thru it once i see that you can at least set it up

8v-9 is Q

so 8v-9=5v+6??

good, then
(equation for b) = (equation for q)
5v+6 = 8v-9

so then do you subtract 5 from both sides?

close, there is a v stuck to the 5, so lets subtract 5v from each side for starters

5v+6 = 8v-9
-5v -5v
----------------
6 = 3v - 9
what do you think another good move would be?

add 9 to both sides?

divide 3 on both sides to get v

yeah

then what is our solution :)

Like plug 5 into the original problem?

yes, and it should work in either equation for b or for q and give us the same value

5(5)-9?

so 16
and 31?
I feel like thats totally off

b = 5v+6
= 5(5)+6
= 25 + 6
= 31
q = 8v-9
=8(5)-9
= 40 - 9
= 31
b = q = 31

OH haha DUH sorry I got it now!

;) good luck

Thank you!