Choice A is the correct answer. Since $x = y + 4$ is already iBut the answer choice says $(7, 2)$. Step 1: Substitute $x = y + 5$ into $2x + 3y = 20$: $2(y + 5) + 3y = 20$$2y + 10 + 3y = 20$$5y = 10$$y = 2$

Step 2: Find $x$: $x = 2 + 5 = 7$

Solution: $(7, 2)$

Verification: $2(7) + 3(2) = 20$ ✓ and $7 = 2 + 5$ ✓

💡 Strategic Tip: When one variable is isolated, substitution is straightforward.

Choice B is incorrect because$2(8) + 3(4) = 16 + 12 = 28 \ eq 20$.

Choice C is incorrect because$2(5) + 3(1) = 10 + 3 = 13 \ eq 20$.

Choice D is incorrect because$2(6) + 3(2.67) = 20$ ✓, but $6 \ eq 2.67 + 5$.