kevinbrown844 kevinbrown844

21-01-2020
Mathematics

contestada

4x+7y=-14 x+4y=-8
Solve by substitution

Respuesta :

surjithayer10otahza surjithayer10otahza

21-01-2020

Answer:

x=0

y=-2

Step-by-step explanation:

x+4y=-8

x=-4y-8

4x+7y=-14

4(-4y-8)+7y=-14

-16y-32+7y=-14

-9y=-14+32

-9y=18

y=-2

x=-4*-2-8=8-8=0

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