Question 7 • FL-1200700-Mathematics for College Algebra MIS
Read the equations as y = −3x − 2 and 5x + 2y = 15. Substitute the first equation into the second: 5x + 2(−3x − 2) = 15, which simplifies to −x − 4 = 15, so x = −19. Then y = −3(−19) − 2 = 55, giving (−19, 55), choice B.
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