Write an equation in simplest form for:
$y$y is $20$20 times $x$x plus $14$14.
Write an equation in simplest form for:
$y$y is $9$9 times $x$x minus $2$2.
Write an equation in simplest form for:
$y$y equals $x$x divided by $3$3, minus $3$3.
Write an equation in simplest form for:
$y$y is $x$x divided by $3$3 plus $12$12.