How would you solve x = 2y - 4 and x + 8y = 16 using elimination?
Using the elimination method: x = 2y - 4 ; x + 8y = 16; (x + 8y = 16) - (x - 2y = -4) ; 10y = 20 ; y = 20/10 ; y = 2 ; x = 2(2) - 4 ; x = 4 - 4 ; x = 0; Solution set: (x = 0, y = 2)
Question
Updated 273 days ago|10/21/2018 3:22:49 AM
Edited by Masamune [10/21/2018 3:22:35 AM]
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3
Using the elimination method:
x = 2y - 4 ;
x + 8y = 16;

(x + 8y = 16) - (x - 2y = -4) ;
10y = 20 ;
y = 20/10 ;
y = 2 ;

x = 2(2) - 4 ;
x = 4 - 4 ;
x = 0;

Solution set: (x = 0, y = 2)
Added 273 days ago|10/21/2018 3:22:49 AM

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