Given the equation;
[tex]6x-y=6[/tex]If x= 0, then;
[tex]\begin{gathered} \text{Substitute for x into the equation;} \\ 6x-y=6 \\ 6(0)-y=6 \\ 0-y=6 \\ -y=6 \\ \text{Multiply both sides by -1;} \\ -y(-1)=6(-1) \\ y=-6 \end{gathered}[/tex]Note that, when a negative number is multiplied by a negative one, the result is positive. Hence, -y times -1 equals y.
ANSWER:
[tex]y=-6[/tex]