Question

1) 2x+y=7
2) 2x-y=1 como se resuelve amigos?

Answer 1

1) 2x+y=7
2x=7-y
X=7/2-y/2
X=7-y/2

2) 2x-y=1
2x=1+y
X=1/2+y/2
X=1+y/2