Respuesta :

I’m just gonna go with it’s 2 separate math questions

so for:2y+7x=-5      

 (In my answers If there is a slash between two numbers it means it is a fraction)

X= - 2y/7-5/7

Y= - 7x/2-5/2

For 5y-7x=12

X= 5y/7-12/7

Y=7x/5+12/5

Hope I could help