Question

y = 4 - 2х
5x - 2y = 1


me ajudem pfv
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Answer 1

y = 4 - 2х

5x - 2y = 1

y+2x=4

-2y+5x=1

2y+4x=8

-2y+5x=1

4x=8

5x=1

9x=9       x=1

y = 4 - 2

y=2

y=2; x=1