Question 850460
x - 2y = -10 or x=2y-10
y = -2x - 6  substitute (2y-10) for x in this equation & solve for y.
y=-2(2y-10)-6
y=-4y+20-6
y+4y=14
5y=14
y=14/5 ans.
x=2(14/5)-10
x=28/5-10
x=28/5-50/5
x=-22/5 ans.
Proof:
14/5=-2(-22/5)-6
14/5=44/5-30/5
14/5=14/5