3 years ago

Explain your answer !! Have a nice day Will give braisnlt

Mathematics

1 answer:

liubo4ka [24]3 years ago

8 0

Answer:

$x=3$

$y=-4$

Step-by-step explanation:

$4x+5y=-8$ ----------- (1)

$-4x-4y=4$ -----------(2)

Adding equation (1) and (2)

$4x+5y-4x-4y=-8+4$

$y=-4$

Substitute y=-4 in equation (1) or (2)

$4x+5(-4)=-8$

$4x-20=-8\\4x=-8+20\\4x=12\\x=3$

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