SAT Question 5e422ff9: Systems of Linear Equations answer and explanation with Desmos solution

Choice D is correct. Multiplying both sides of $y=2x-3$ by $5$ results in $5y=10x-15$. Multiplying both sides of $3y=5x$ by $2$ results in $6y=10x$. Subtracting the resulting equations yields $5y-6y=(10x-15)-10x$, which simplifies to $-y=-15$. Dividing both sides of $-y=-15$ by $-1$ results in $y=15$.