Question

(5, 2);
2x +y= 12
—3y - х = -11
I’m confused help !

Answer 1

so (5;2) belongs to these equaliations

Explanation:

(5;2) is the same as (x;y)

so u just plug in your numbers

—3y - х = -11

-3*2-5=-11

-6-5=-11

-11=-11

2x +y= 12

2*5+2=12

12=12