Question

$\frac{2y + b}{t} = t$

Answer 1

$\frac{2y+b}{t}=t$
multiply both sides by t
$\frac{(2y+b)t}{t}=tt;t \neq 0$
simplify
$2y+b=t^2;t \neq 0$
subtract b from both sides
$2y+b-b=t^2-b;t \neq 0$
simplify
$2y=t^2-b;t \neq 0$
divide both sides by 2
$\frac{2y}{2}= \frac{t^2}{2}- \frac{b}{2};t \neq 0$
simplify
$y= \frac{t^2-b}{2};t \neq 0$
Hope this helps :)