SOLUTION: x=2-y 2y+x=9
Algebra
->
Coordinate Systems and Linear Equations
->
Lessons
-> SOLUTION: x=2-y 2y+x=9
Log On
Linear Solvers
Linear
Practice
Practice
Answers archive
Answers
Word Problems
Word
Lessons
Lessons
In depth
In
Click here to see ALL problems on Linear-systems
Question 177089
:
x=2-y
2y+x=9
Answer by
jim_thompson5910(35256)
(
Show Source
):
You can
put this solution on YOUR website!
Start with the second equation.
Plug in
. In other words, replace each "x" with 2-y.
Combine like terms on the left side.
Subtract
from both sides.
Combine like terms on the right side.
----------------------
Go back to the first equation
Plug in
Subtract
=========================================
Answer:
So the solutions are
and
which form the ordered pair (-5,7)