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Mathematics 15 Online
OpenStudy (anonymous):

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)}

OpenStudy (anonymous):

@agl

OpenStudy (anonymous):

third right?

OpenStudy (anonymous):

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

OpenStudy (anonymous):

yep. the third one

OpenStudy (anonymous):

thank you:)

OpenStudy (anonymous):

np :)

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