if x-y=y+3=7, what is the value of x?

If 17x -5y=8 and 14 x -7y =-7, what is the value of 3x + 2y ?

For drawing the graph of 3x + 7y = 27 , if y = 3 what is the value of x ?

3x-4y=7 What is the value of x ?

If x+7y=15 and x+3y=7 , what is the value of x+5y?

If 3x+5y=15 and x-2y=10 , what is the value of 2x+7y ?

If x/3=4 and x+y=32, what is the value of x-y?

If x+y=5 ; x-y=3 then what is the value of x ?

If 3x+3y=1 , what is the value of x=y-6 ?

If ((5x-y))/((5x + y)) =3/7, what is the value of ((4x ^(2) + y ^(2) -4 xy ))/( ( 9x ^(2) + 16 y^(2) + 24 xy)) ?

If (x-3y)/(x)=7 , what is the value of (x)/(y) ?