Question

Which equation will result if the substitution method is used to solve the following system of linear equations?

x + y = 6
x = y + 5

x + y = y + 5
(y + 5) + y = 6
x + (y + 5) = 6
x = (x – 6) + 5

Answer 1

So what would ur equation look like if u replace the value of x in the first equation with the second

Answer 2

hmm um, i dont know what x is :s

Answer 3

look at ur second equation, x is y+5

Answer 4

replace the X with y + 5?

Answer 5

y+5+y=6?

Answer 6

wait ohhhhhhhhhhh

Answer 7

Exactly. Great job