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wel
3 years ago
6

-5x - 2y = 13 -4x + y = 0 Solve by substation

Mathematics
1 answer:
kotegsom [21]3 years ago
5 0

Answer:

(x,y)=(-1,-4)

Step-by-step explanation:

-4x + y = 0

+4x         +4x

y=4x

-5x - 2y = 13

+5x          +5x

-2y = 5x+13

-2(4x) = 5x+13

-8x=5x+13

-5x -5x

-13x/-13=13/-13

x=-1

Thus:

y=4x

y=4(-1)

y=-4

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