Question

Evaluate the expression, using the given value of the variable.

3 – 7x + 2x when x = 3

A.
–30

B.
–12

C.
–18

D.
–24

Answer 1

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

Answer 2

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

Answer 3

what grade r u in?

Answer 4

7th...

Answer 5

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

Answer 6

oh COOL!!

Answer 7

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

Answer 8

try evaluating what i told u just TRY

Answer 9

I just need the answer tho

Answer 10

hmm

Answer 11

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..

Answer 12

just try

Answer 13

umm 15

Answer 14

I HAVE NO CLEAR IDEA MY MIND IS FOGGED

Answer 15

let me try it..

Answer 16

remember PEMDAS

Answer 17

sorry caps

Answer 18

follow that order

Answer 19

what on this great planet is that?

Answer 20

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!!

Answer 21

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

Answer 22

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

Answer 23

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

Answer 24

thank you soo much

Answer 25

sorry got mad...

Answer 26

what?

Answer 27

ok

Answer 28

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

Answer 29

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

Answer 30

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

Answer 31

i cant other sights are blocked.

Answer 32

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

Answer 33

but this is school related

Answer 34

cant mom doesnt want me 2

Answer 35

ok