Which expression is equivalent to (–3y – x) – (5y – 8x)?

Distribute the subtraction sign across the second parentheses: (–3y – x) – (5y – 8x) = –3y – x – 5y + 8x. Combine like terms to get –8y + 7x, which matches choice B, “–8y + 7x.”

AI-written and checked against the verified answer.