casper123 casper123

24-09-2017
Mathematics

contestada

Question 2 options:
All questions are about this system of equations:

{5x +18y =23
x +3y = 2
When you multiply the second equation by this number, what does it become?

Respuesta :

meredith48034 meredith48034

24-09-2017

the second equation becomes
-6x-18y=-12

5x+18y=23
-6x-18y-12

-x=11

x=-11

-11+3y=2

3y=13

y=13/3

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