Question

If 7p + 5q = 2 and 8p - 9q = 17, then -p + 14q =

Answer 1

First you have a system of equations.
7p + 5q = 2
8p - 9q = 17

What methods to solve those do you know?

Answer 2

opposite coefficients?

Answer 3

That means that you would do what?

Answer 4

multiply the first equation by 9 and second one by 5

Answer 5

Good!

Answer 6

i dont get the last part

Answer 7

OK, multiply the equations, 1st times 9 and second times 5.
Tell me what you get.

Answer 8

Do you need help with multiplying the equations?

Answer 9

ok hold up

Answer 10

63p=18

Answer 11

I don't think so, do it again. (or you want me to show your mistake?)
7p + 5q = 2
8p - 9q = 17

Answer 12

times the whole equation by 9 the Q cancels out and 7*9 is 63 and 9*2=18

Answer 13

Yes and you are adding the result of the second equation to that.
Don't just cancel the Q s.

Answer 14

is it 1

Answer 15

the p? How do you know that?

Answer 16

i solved it

Answer 17

Cool@!

Answer 18

Ok, you got 103p=103 right?

Answer 19

Shalom brother

Answer 20

And you can do the second variable.
DON"T forget that you are SOLVING for -p + 14q, OK?

Answer 21

Shalom, how do you know I am Jewish?

Answer 22

gotcha!

Answer 23

U did get me!

Answer 24

lol a brother recognizes a smart brother

Answer 25

Aleychem Shalom, then!

Answer 26

You are a 4th Jew I met in the OS.

Answer 27

nice

Answer 28

להתראות

Answer 29

I met Asher, (that one is obvious) you and some other girl with a nickname.

I am going to fan you.

Answer 30

ok go ahead

Answer 31

Are you sephardy or ashkenaz?

Answer 32

sefardy, my bad.