Question

What is the solution to the system of linear equations?

−9x+4y=55

−11x+7y=82

Answer 1

the correct answer would be

(3,7)

7(-9+4y=55)

-4(-11+7y=82)

63x+28y=385

44x-28y=-328

19x =57

x=3

63(3)+28y=385

189+28=385

28y=196

y=7