Question

2x + 3y = 10
-6x - y = 20​

Answer 1

Explicación paso a paso:

2x+3y=10

x=(10-3y)/2

-6x-y=20

-6(10-3y)/2 - y=20

-30+9y-y=20

8y=50

y=25/2

2x+3(25/2)=10

2x+75/2=10

4x+75=20

4x=-55

x= - 55/4