Question 35785
5x-3y=7  
x-6y=-4 or x=6y-4 substituting 6y-4 for x in the first equation we get

5(6y-4)-3y=7 or 30y-20-3y=7 27y=27 or y=27/27 or y=1 thus

x-6*1=-4 or x-6=-4 or x=2