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MA_775_DIABLO [31]
3 years ago
8

Solve for x and y 3x + 2y = 16 7x + y = 19

Mathematics
1 answer:
alukav5142 [94]3 years ago
3 0

Answer:

  (x, y) = (2, 5)

Step-by-step explanation:

Double the second equation and subtract the first:

  2(7x +y) -(3x +2y) = 2(19) -(16)

  11x = 22

  x = 2

In the second equation, ...

  7(2) +y = 19

  y = 19 -14 = 5

The solution is (x, y) = (2, 5).

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