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OpenStudy (anonymous):
If you were to use the substitution method to solve the following system, choose the new system of equations that would result if x was isolated in the second equation. 2x + 5y – 2z = –1 x + 3y + z = –2 3x – 2y + 3z = –17 Choices: A)–y = –5 6x + 7y = –11 B)11y = 3 7y + 6z = –11 C)4x + 11y = –5 –11y = –11 D)–y – 4z = 3 –11y = –11
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