Question

hi can someone help in Algebra 2:
Has to do with
SOLVING SYSTEMS BY SUBSTITUTION.

Answer 1

take the last equation and find z in terms of x
2x+2z = 4
2z = 4-2x
z = 2-x

Answer 2

next substitute for z in the first and second equations to get 2 equations in x and y

Answer 3

oooooh okay

Answer 4

Thank you :3

Answer 5

so first equation becomes
-x - y - (2-x) = -8
-x - y - 2 + x = -8
-y-2 = -8
y = 6

thats a bit of luck - we have value of y already

Answer 6

I guess you can continue from here ?

Answer 7

yeah i can, thank you again ^.^

Answer 8

yw