esabella21 esabella21

08-02-2021
Mathematics

contestada

X=y-8 and -x-y=0 solve by substitution

Respuesta :

gwen4970 gwen4970

08-02-2021

Answer:

y=4

Step-by-step explanation:

x=y-8

-x-y=0

-(y-8)-y=0

Distribute the negative

-y+8-y=0

Combine the like terms

-2y+8=0

-8 (to both sides)

-2y=-8

Divide by -2

y=4

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