Question

2 X - Y = -1
x+3y = 2​

Answer 1

2x-y= -1

x+3y=2⇒x=2-3y=2-3·5/7=2-15/7= -1/7

2(2-3y)-y= -1

4-6y-y= -1

4-7y= -1

4+1=7y

5=7y

5/7=y

y=5/7☑

x= -1/7☑