Given: x + y = 6.

if x {-15, -6, -1}, then which of the following sets of ordered pairs are solutions?

{(-15, -21), (-6, -12), (-1, -7)}
{(-15, 21), (-6, 12), (-1, 7)}
{(-15, 21), (-6, 12), (-1, -7)}

X + y = 6

when x = -15
-15 + y = 6
y = 6 + 15
y = 21solution is (-15,21)

when x = -6
-6 + y = 6
y = 6 + 6
y = 12...solution (-6,12)

when x = -1
-1 + y = 6
y = 6 + 1
y = 7...solution is (-1,7)

so ur answer is : (-15,21) , (-6,12) , (-1,7)