29-06-2021
Mathematics

contestada

-2x + y = 8
3x + y = -2

Respuesta :

annabel71 annabel71

29-06-2021

Answer:

2x+y=8

3x+y=-2

Elimination method

subtract equation (1) from (2)

1x/1=6/1

x=6

Substitute for y in equatw (1)

2 ×6+y=8

12+y=8

Collect like terms

y=8-12=-4

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