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5x-16y=272 y=(64-7x)/4
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5x-16y=272 y=(64-7x)/4

User Rwallace
by
8.3k points

1 Answer

1 vote

Answer:

x=16, y=-12. (16, -12).

Explanation:

5x-16y=272

y=(64-7x)/4

------------------

4y=64-7x

4y+7x=64

5x-16y=272

---------------------

4(4y+7x)=4(64)

5x-16y=272

-----------------

16y+28x=256

5x-16y=272

------------------

33x=528

x=528/33

x=16

5(16)-16y=272

80-16y=272

16y=80-272

16y=-192

y=-192/16

y=-12

User Tin Tran
by
7.6k points
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