SAT Question d1aeb6f1: Systems of Linear Equations answer and explanation with Desmos solution

Choice D is correct. Dividing both sides of the equation $10x=110$ by $10$ yields $x=11$. Substituting $11$ for $x$ in the equation $6x-63=y$ yields $6(11)-63=y$, which is equivalent to $66-63=y$, or $3=y$. Therefore, the value of $y$ is $3$.