SOLUTION: 15x - 9y = 0 2x + 3y = 21
Algebra
->
Systems-of-equations
-> SOLUTION: 15x - 9y = 0 2x + 3y = 21
Log On
Algebra: Systems of equations that are not linear
Section
Solvers
Solvers
Lessons
Lessons
Answers archive
Answers
Click here to see ALL problems on Systems-of-equations
Question 835024
:
15x - 9y = 0
2x + 3y = 21
Answer by
tommyt3rd(5050)
(
Show Source
):
You can
put this solution on YOUR website!
from 1)
y=5/3 x
from 2)
2x+3(5/3 x) = 21
2x+5x=21
7x=21
x=3
then
y=5/3 (3)
y=5
solution:
(3,5)