SOLUTION: x=3y-1 x+2y=9 How do I solve the sytem of equation using the subsitution method? Please show the work!

Algebra ->  Expressions-with-variables -> SOLUTION: x=3y-1 x+2y=9 How do I solve the sytem of equation using the subsitution method? Please show the work!      Log On


   

Question 20166: x=3y-1
x+2y=9
How do I solve the sytem of equation using the subsitution method? Please show the work!
Answer by christinaaa192(28) About Me  (Show Source):
You can put this solution on YOUR website!
subsitute x with 3y-1
so---

3y-1+2y=9 =
5y-1=9 =
5y=10 =
y=2
now that we know y we can solve for x
x+2(2)=9 =
x+4=9 =
x=5
i hope this can help