SOLUTION: solve for the value of X where these two lines cross. 3y=21-6x and 3y=24-9x

Algebra ->  Linear-equations -> SOLUTION: solve for the value of X where these two lines cross. 3y=21-6x and 3y=24-9x      Log On


   



Question 153956: solve for the value of X where these two lines cross.
3y=21-6x and 3y=24-9x

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
3y=21-6x and 3y=24-9x
---------------
y=7-2x
y=8-3x
Subtract
0=-1+x
x=1
That's where they cross, at x=1
y=5, so the point is (1,5), the only point that lies on both lines.