What is the solution of the system of linear equations?–3x + 4y = –182x – y = 7

From 2x − y = 7, solve for y to get y = 2x − 7. Substitute into −3x + 4y = −18: −3x + 4(2x − 7) = −18, so 5x = 10 and x = 2. Then y = 2(2) − 7 = −3, giving the solution (2, −3), choice C.

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