## UmmmHELP 3 years ago Question is in comments

1. UmmmHELP

|dw:1353013284316:dw|

2. amistre64

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

3. amistre64

since b=q, and they give you eqaustions for b and q; then write the equations equal to each other and it should be a simple matter to solve for v

4. UmmmHELP

yeah but Im not sure how to do that

5. amistre64

what is the equation for b?

6. UmmmHELP

5v+6

7. amistre64

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

8. amistre64

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

9. UmmmHELP

8v-9 is Q

10. UmmmHELP

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

11. amistre64

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

12. UmmmHELP

so then do you subtract 5 from both sides?

13. amistre64

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

14. amistre64

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

15. UmmmHELP

16. amistre64

correct 6 = 3v - 9 +9 +9 ----------- 15 = 3v only one more move left, what do you think we should do?

17. UmmmHELP

divide 3 on both sides to get v

18. amistre64

excellent 15/3 = 3v/3 5 = v so now that we know a normal looking value for v, we can use it to find the values of b and q right?

19. UmmmHELP

yeah

20. amistre64

then what is our solution :)

21. UmmmHELP

Like plug 5 into the original problem?

22. amistre64

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

23. UmmmHELP

5(5)-9?

24. amistre64

it looks like you might have blended the 2 equations into an abomination of desolation :) b = 5v+6 = 5(5)+6 q = 8v-9 =8(5)-9

25. UmmmHELP

so 16 and 31? I feel like thats totally off

26. amistre64

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

27. UmmmHELP

OH haha DUH sorry I got it now!

28. amistre64

;) good luck

29. UmmmHELP

Thank you!