IM 8.3 13.3 I'll Take an X Please

What is the solution to $6-x=4y$  if  $y=-\frac{1}{4}$  ?

(a)  

 What is the solution to $9x=2y$ if  $x=4$  ?

(a)  

What is the solution to $2x-y=14$ if $x=10.5$ ?

(a)  

What is the solution to $y=-2x-\frac{1}{2}$ if $y\ =-\frac{1}{2}$ ?

(a)  

What is the solution to $7+5x=y+7$ if $y=15$ ?

(a)  

What is the solution to $3x+2y=36$ if $x=2$ ?

(a)