Question

\frac{23}{x+1} =\frac{1}{4}

Answer 1

x+1=23×4
x+1=92
x=92-1
x=91

Answer 2

$\frac{23}{x + 1} = \frac{1}{4}$

$1(x + 1) = 23 \times 4$

$x + 1 = 92$

$x = 92 - 1$

$x = 91$