Question 60137
2X-Y=1
-Y=-2X+1
Y=2X-1 NOW SUBSTITUTE (2X-1) FOR Y IN EQUATION #2
3X-2(2X-1)=-5
3X-4X+2=-5
-X=-5-2
-X=-7
X=7
THEN (2*7)-Y=1
14-Y=1
-Y=-14+1
-Y=-13
Y=13
PROOF
3*7-2*13=-5
21-26=-5
-5=-5