edvin66 edvin66

09-03-2021
Mathematics

contestada

x +y=75 10x + y = 15

x y75 10x y 15 class=

Respuesta :

22dicer 22dicer

09-03-2021

Answer:

y=84

Step-by-step explanation:

multiply the top to eliminate the y

-x-y=-75

10x+y=48 and then subtract

9x=-27

x=-9

then plug x in for one of the two equations

-9+y=75 simplify

y=84

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