SOLUTION: solve each systm of equation using the substitution pr elimination method
x+y=-4
x-y=2
Algebra.Com
Question 563169: solve each systm of equation using the substitution pr elimination method
x+y=-4
x-y=2
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
This is already set up to do the elimination method. Note that both equations are in Standard )
form and that the coefficients on the 
variable are additive inverses of each other.
Just add the two equations, that is add the right side of the first equation to the right side of the second equation and add the left side of the first equation to the left side of the second equation. The variable will disappear and you can then solve the single variable equation in 
. Once you have a value for , substitute it back into either of the original equations, then solve for
John
My calculator said it, I believe it, that settles it
RELATED QUESTIONS
Solve using the substitution method, the elimination method, or the graphing method.... (answered by Alan3354)
solve each system using the substitution or elimination method
x-2y=6
x+y=3
(answered by Alan3354)
(x+2y=1
2x-y=-3) solve each system using the substitution or elimination... (answered by checkley75)
solve the systm of linear equation by substitution
3x+2y=6... (answered by stanbon)
How would you solve this equation, by either using the substitution method or the... (answered by jim_thompson5910)
It says to solve the problem by using the substitution method, elimination method or... (answered by josmiceli)
-x+y=1
2x+y=-2
Solve using substitution method and elimination... (answered by iamverybadinmath)
solve this equation using the substitution method
x+y=20... (answered by sofiyac)
Solving the following equation using substitution or elimination method
x/3+y/2=3... (answered by swincher4391)
