Given: x + 2y = -6. solve for y. given: x + y = 6. if x {-15, -6, -1}, then which of the following sets of ordered pairs are solutions? , -21), (-6,-12), (-1,-7) ,21), (-6,12), (-1,7) c. (-15,21), (-6,12), (-1,-7)

1.

2.B.(-15,21), (-6,12), (-1,7)

Step-by-step explanation:

In order to solve for Y the first equation you just have to clear the Y from one side of the equation, and we just do it by steps:

First you add in both sides of the equation a -x to eliminate the X on the Y side of the equation, and then you divide both sides of the equation by 2, to eliminate the 2 from the Y side of the equation, and now you have you equation solved for Y.

To calculate which pair od solutions are correct, you just have to input the values for X into the equation:

So our first pair would be (-15,21)

So our second pair would be (-6,12)

So our third pair would be (-1,7), and the answer is option "B".

dont understand

step-by-step explanation:

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