Question

2x − 3y − z if x = −2, y = 3, and z = −2

Answer 1

Evaluate the following expression using the values given: (5 points)

Find 2x − 3y − z if x = −2, y = 3, and z = −2

a
−11

b
11

c
−15

d
15

Answer 2

i dont understand how to solve that all i need is what to do i wanna solve it @tetsxpreme

Answer 3

what are you solving for

Answer 4

idk

Answer 5

Algebra right?

Answer 6

yuh

Answer 7

how do i solve it -_-

Answer 8

how i got my answer i substituted 2x-3x-z with -2 and z with -2 and y with 3 so it equaled up to 2(-2) -3x3-(-2)

Answer 9

so if i never did this befoe and didnt look at the lesson explain it like i am just learnig it

Answer 10

you can do either way they both lead to the right answer

Answer 11

not that ididnt watch the lesson....

Answer 12

Well in this math problem, you just replace the variables with the actual numbers then solve like these lovely people did!

Answer 13

basically
make it seem like you know what your doing but also like your new to the lesson

Answer 14

I believe what you need to do to solve this problem is to plug each of the numbers into its designated places.

Ex: Find 3x-4y-z, if x=2, y=3, and z=4.

First, you need to find out what the first term would equal.

Plug the 2 into where the x is and then multiply 2 by 3.

3(2)=3 x 2=6

Next we need to find out what the y is.

Do the same as you did for x. Plug 3 into where the y is then multiply.

4(3)=4 x 3=12

Lastly, we come to the final term.

Once again, we need to plug in what number z is equal to.

In this case, it is 2.

So the final answer to this would be 6-12-2, which, in solving this, would be -8 because 6-12=-6. -6-2 is -8 because of the fact that a negative plus a negative would still be negative.

Answer 15

Do this with this problem and you'll have your answer!

Answer 16

ok