Question

Please help!
solve using the substitution method
(Question in the comments)

Answer 1

do you know what "substitution" method means?

Answer 2

just asking
"no" is a fine answer i can show you if you do not know it

Answer 3

Yes, It's when you substitute in the equation, right?

Answer 4

yes'
the first equation is \[y=\color{red}{2x+6}\] the second one has \[3x-\color{red}y=6\] substitute \(\color{red}{2x+6}\) for \(\color{red}y\) and solve \[3x-(\color{red}{2x+6})=6\]

Answer 5

x=12

Answer 6

yes i believe so

Answer 7

Okay, know what?

Answer 8

now you would normally substitute back to find \(y\)
since \[y=2x+6\] and \(x=12\) you have \[y=2\times 12+6\]

Answer 9

on the other hand, you only have one choice with \(x=12\) so i guess you can skip that step and pick that one

Answer 10

Wait, I don't understand.
What's is the correct answer?

Answer 11

did you find \(y\)?

Answer 12

you got \(x=12\) right, that was the hard part, now find \[y=2\times 12+6\]

Answer 13

Y=30

Answer 14

yes

Answer 15

which answer has \(x=12,y=30\)?

Answer 16

D.

Answer 17

bingo

Answer 18

Thank you

Answer 19

yw