Question 684152
Hint:


Solve the second equation for y


2x-y=7


-y = -2x+7


y = 2x-7


Then plug this into the first equation


2x-3y=6 


2x-3(2x-7) = 6 


2x-6x+21 = 6 


-4x+21 = 6 


I'll let you finish. Solve for x. Then use the solution for x to find the solution for y.