Emllyk one year ago Evaluate the expression, using the given value of the variable. 3 – 7x + 2x when x = 3 A. –30 B. –12 C. –18 D. –24

1. PigPresident

it is going to look like this right: 3 - 7 * 3 + 2 * 3

2. Emllyk

i think so... idk my math grades went down hill after 5th grade so i have no idea

3. PigPresident

4. Emllyk

7th...

5. PigPresident

i am in 7th grade and math is my best subject...

6. PigPresident

oh COOL!!

7. Emllyk

Im a nerd in ALL other classes tho its just when the alphabet became a grade i paniced

8. PigPresident

try evaluating what i told u just TRY

9. Emllyk

I just need the answer tho

10. froggyfroggy

hmm

11. PigPresident

ohh dont worry u will get better trust me.. just like me in 4th grade i was always getting f and d's i promise..

12. PigPresident

just try

13. Emllyk

umm 15

14. Emllyk

I HAVE NO CLEAR IDEA MY MIND IS FOGGED

15. PigPresident

let me try it..

16. PigPresident

remember PEMDAS

17. Emllyk

sorry caps

18. PigPresident

19. Emllyk

what on this great planet is that?

20. PigPresident

P Parentheses first E Exponents (ie Powers and Square Roots, etc.) MD Multiplication and Division (left-to-right) AS Addition and Subtraction (left-to-right) WOAH U NEVER LEARNED IT WOW!!

21. Emllyk

i WAS smart in gt to its math kicks me un the hind end...

22. DontLikeMathButOhWell

3-7(3)+2(3) PEMDAS -7 x 3 = -21 3-21+2(3) 2 x 3 = 6 3-21+6 = -12 Your answer is B

23. PigPresident

yup u r correct bc a negative * a Positive is A Negative

24. Emllyk

thank you soo much

25. Emllyk

26. PigPresident

what?

27. PigPresident

ok

28. Emllyk

pig presedent i have no idea what u said about please excuse my dear aunt sally

29. Emllyk

Evaluate the expression, using the given value of the variable. z ÷ 2 – 4z + 3(z – 3) when z = 8 A. –17 B. –13 C. –7 D. –1 this one :D

30. PigPresident

just look at this site http://www.mathsisfun.com/operation-order-pemdas.html

31. Emllyk

i cant other sights are blocked.

32. PigPresident

oh like me too...my parents r like that

33. PigPresident

but this is school related

34. Emllyk

cant mom doesnt want me 2

35. PigPresident

ok