Question

I'm stuck on this one))Which equation shows the substitution method being used to solve the system of linear equations?
x + y = 6
x = y + 5

a.x = (x – 6) + 5


b.(y + 5) + y = 6

c.x + (y + 5) = 6

d.x + y = y + 5

Answer 1

Well we did a bunch of these so im assuming you learned about the substitution method
We already know what x='s its given
x + y = 6 <---e1
x = y + 5 <---e2
What do you get when you substitute e2 into e1?

Answer 2

I don't know..I'm confused

Answer 3

Ok they told us x=y+5 correct?

Answer 4

Yes

Answer 5

Ok we know the value of x its y+5
If you replace the x in equation 1 with y+5 what do we get?

Answer 6

1= y + 5

Answer 7

Where did you get 1 from?

Answer 8

Sorry I misread it.. I thought you said replace x with 1..

Answer 9

Is it D?

Answer 10

This is equation 1
\(\huge\rm\color{red}{x + y = 6}\)
\(\huge\rm\color{green}{x=y+5}\)
If you take:
\(\huge\rm\color{green}{y+5}\)
And replace x in:
\(\huge\rm\color{red}{x+ y = 6}\)
With
\(\huge\rm\color{green}{y+5}\)
What do you get?

Answer 11

D is incorrect

Answer 12

Give me a sec to solve it

Answer 13

Dont solve it just plug it in