Question 208496
2x-6y=-4
7x+y=25 or y=25-7x
2x-6(25-7x)=-4
2x-150+42x=-4
44x=-4+150
44x=146
x=146/44
x=73/22 ans.
y=25-7*73/22
y=25-511/22
y=(25*22-511)/22
y=(550-511)/22
y=39/22 ans.

solution (73/22,39/22)