SOLUTION: solve system of equations by addition method. x+y=-7 x-y=9
Algebra
->
Expressions-with-variables
-> SOLUTION: solve system of equations by addition method. x+y=-7 x-y=9
Log On
Algebra: Expressions involving variables, substitution
Section
Solvers
Solvers
Lessons
Lessons
Answers archive
Answers
Click here to see ALL problems on Expressions-with-variables
Question 391942
:
solve system of equations by addition method.
x+y=-7
x-y=9
Answer by
Alan3354(69443)
(
Show Source
):
You can
put this solution on YOUR website!
Add the 2 equations.
