SOLUTION: I am not sure I have worked this problem correctly could you please help? Solve the system by addition... -2x + 3y = -15 x - 2y = 11 Thank you for your help.

Algebra ->  Linear-equations -> SOLUTION: I am not sure I have worked this problem correctly could you please help? Solve the system by addition... -2x + 3y = -15 x - 2y = 11 Thank you for your help.       Log On


   

Question 93018: I am not sure I have worked this problem correctly could you please help?
Solve the system by addition...

-2x + 3y = -15
x - 2y = 11
Thank you for your help.
Answer by checkley75(3666) About Me  (Show Source):
You can put this solution on YOUR website!
-2X+3Y=-15 NOW MULTIPLY THE SECOND EQUATION BY 2 & ADD
2X-4Y=22
----------------------------
-Y=7
Y=7/-1
Y=-7 ANSWER.
-2X+3*-7=-15
-2X-21=-15
-2X=-15+21
-2X=6
X=6/-2
X=-3 ANSWER.
PROOF
(2*-3)-(4*-7)=22
-6+28=22
22=22