makiahhhhh makiahhhhh

08-03-2020
Mathematics

contestada

y-x=4 and x is three times the value of y, what is the value of x+y?

Respuesta :

miljanamilovanovic12 miljanamilovanovic12

08-03-2020

Answer:

x+y=-8

Step-by-step explanation:

y-x=4

x=3y

y-3y=4

x=3y

-2y=4

x=3y

y=4/(-2)

x=3y

y=-2

x=3*(-2)

x=-6, y=-2 then

x+y=-6-2=-8

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