<h3><u>The value of x is equal to -9.</u></h3><h3><u>The value of y is equal to 1.</u></h3>
x - 3y = -12
<em><u>Add 3y to both sides.</u></em>
x = -12 + 3y
<em><u>Plug the value of x into the second equation.</u></em>
2(-12 + 3y) + 11y = -7
<em><u>Distributive property.</u></em>
-24 + 6y + 11y = -7
<em><u>Add 24 to both sides.</u></em>
6y + 11y = 17
<em><u>Combine like terms.</u></em>
17y = 17
<em><u>Divide both sides by 17.</u></em>
y = 1
Now that we have the value of y we can plug it into the original equation to find the value of x.
x - 3(1) = -12
x - 3 = -12
<em><u>Add 3 to both sides.</u></em>
x = -9