Choice A is the correct answer. Since $y = 2x - 7$ is already isolated, substitute directly into the second equation.

Step 1: Substitute $y = 2x - 7$ into $4x - 3y = 5$: $4x - 3(2x - 7) = 5$$4x - 6x + 21 = 5$$-2x + 21 = 5$$-2x = -16$$x = 8$

Step 2: Find $y$: $y = 2(8) - 7 = 16 - 7 = 9$

Solution: $(8, 9)$

Verification: $4(8) - 3(9) = 32 - 27 = 5$ ✓

💡 Strategic Tip: When y is isolated, substitution eliminates the need for algebraic manipulation of the first equation.

Choice B is incorrect because$4(5) - 3(3) = 20 - 9 = 11 \ eq 5$.

Choice C is incorrect because$4(7) - 3(7) = 28 - 21 = 7 \ eq 5$.

Choice D is incorrect because$4(6) - 3(5) = 24 - 15 = 9 \ eq 5$.