Question

Pick out the solution from the values given in the bracket next to each equation. show that the other values do not satisfy the equation.

$\frac{n}{4}=5(18,20,21)$

Answer 1

$n$	$LHS$	$RHS$
$18$	$\frac{n}{4}=\frac{18}{4}=4.5$	$5$	$LHS\ne RHS$
$20$	$\frac{n}{4}=\frac{20}{4}=5$	$5$	$LHS=RHS$
$21$	$\frac{n}{4}=\frac{21}{4}=5.25$	$5$	$LHS\ne RHS$