31-01-2017
Mathematics

contestada

2x-8y=-24
6x+4y=68
Using elimination method

Respuesta :

Mina021 Mina021

31-01-2017

6(2x-8y=-24)
-2 (6x+4y=68)
12x-48y=-144
-12x-8y=-136
-56y=-280

-280÷-56=5
y=5

2x-8 (5)=-24
2x-40=-24
+40. +40
2x=16
16÷2=8
×=8

y=5
x=8
hope this helps, if needed a picture for better understanding,please comment.

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