Question

y=9x-5 2x-y=-37

Answer 1

Elimination or substitution?

Answer 2

substitution

Answer 3

Ok so plug y=9x-5 into 2x-y=-37
\[2x-(9x-5)=-37\]
Now solve for x by simplifying, gathering like terms and isolating x

Answer 4

ok thx

Answer 5

and then once you know x then you can solve for y

Answer 6

can u help me solve this 1 problem so I can know how to do the others im a fast learner

Answer 7

Ok where are u stuck at?

Answer 8

2x-(9x-5)=-37 can u tell me which part I start with

Answer 9

\[2x-(9x-5)=-37\]
\[2x-9x+5=-37 \to \text { Distributive Property}\]

Answer 10

We distributed the -

Answer 11

Do you follow that?

Answer 12

yes

Answer 13

Ok next we gather like terms. Subtract and add any terms that have the same base
\[2\color \red {x}-9\color \red {x}+5=-37\]
I have highlighted the terms that are the same and can be added or subtracted

Answer 14

-7x+5=-37 right

Answer 15

Yess
Now we wanna isolate the x so we subtract 5 from both sides

Answer 16

x=6?

Answer 17

\[-7x+5-5=-37-5\]
\[-7x=-42\]

Answer 18

And yes x=6

Answer 19

Now we know that y=9x-5
So plug x back into that equation and you will get y

Answer 20

y=9(6)-5

Answer 21

y=54-5
y=49

Answer 22

(6,49)?

Answer 23

Yup :)

Answer 24

You are a fast learner! :)

Answer 25

ty ur a good teacher

Answer 26

2x+3y=21 x=-2y+8 is this the same? type