02-12-2020
Mathematics

contestada

Using the elimination method to solve
2 x-y=8
x + y = 20

Respuesta :

sallymiguel02 sallymiguel02

02-12-2020

Step-by-step explanation:

2x-y=8

x+y=20

------------

3x=28

×=28÷3=9.3

so

9.3+y=20

y=20-9.3

y=20.7

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