[tex]\sf \bf {\boxed {\mathbb {\: C.\:1}}}[/tex]
[tex]\large\mathfrak{{\pmb{\underline{\orange{Step-by-step\:explanation}}{\orange{:}}}}}[/tex]
[tex]7 - y = 6[/tex]
[tex]➺ \: - y = 6 - 7[/tex]
[tex]➺ \: - y = - 1[/tex]
[tex]➺ \: y = 1[/tex]
Therefore the value of [tex]y[/tex] is 1.
[tex]\large\mathfrak{{\pmb{\underline{\blue{To\:verify}}{\blue{:}}}}}[/tex]
[tex]7 - y = 6[/tex]
[tex]➼ \: 7 - 1 = 6[/tex]
[tex]➼ \: 6 = 6[/tex]
➼ L. H. S. = R. H. S.
Hence verified.
[tex]\red{\large\qquad \qquad \underline{ \pmb{{ \mathbb{ \maltese \: \: Mystique35♨}}}}}[/tex]
