Question

y=x-2 and x=-y-4 using substitution method.

Answer 1

OK! you got
y=x-2 and x=-y-4
you know what x is in terms of y, you are given that strait out x=-y-4
so plug -y-4 for x.

Answer 2

y=x-2
y=(-y-4)-2
y=-y-4-2
y=-y-6
2y=-6
y=-3

Answer 3

its -1

Answer 4

what is the x? yes!

Answer 5

did this help you?

Answer 6

at this part
y=-y-6
2y=-6
y=-3

how is it 2y??

Answer 7

b/c you add y to both sides, (or bring -y to the other side) to eliminate it.

Answer 8

Makes sense, right?

Answer 9

yep! :D

Answer 10

how to graph it?

Answer 11

the same problem?
put it in a y=mx+b form and plug in any numbers for x.

Answer 12

(I don't recommend plugging in really big numbers, try 1,2 and connect the points with a line)

Answer 13

Thank You, Solomon! I was unsure how to use the substitution on this, I know how to graph it.