SOLUTION: 7x+5/9y =30 I need to solve X&Y missing coordinates writen out. Thank you.

Algebra ->  Linear-equations -> SOLUTION: 7x+5/9y =30 I need to solve X&Y missing coordinates writen out. Thank you.      Log On


   

Question 299726: 7x+5/9y =30
I need to solve X&Y missing coordinates writen out. Thank you.
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
7x+5/9y =30
5y/9=-7x+30
5y=-7x*9+9*30
5y=-63x+270
y=-63x/5+270/5
y=-63x/5+54
The y intercept=54
Setting y=0 & solve for x.
0=-63x/5+54
-63x/5=-54
-63x=-54*5
-63x=-270
x=-270/-63
x=4.2857 the x intercept.
Ans.(4.2857,54)
+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+60%2C+-63x%2F5+%2B54%29+ (graph 300x200 pixels, x from -6 to 5, y from -10 to 60, -63x/5 +54).