Question

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)}

Answer 1

@agl

Answer 2

third right?

Answer 3

substitute each value of x given in the set, and solve for y

Answer 4

yep. the third one

Answer 5

thank you:)

Answer 6

np :)