Question 176190
Call Sarah's number x.  Then subtracting 5 times her number from 24 is equivalent to
{{{24-5x}}}
Since it is equal to 4, we have that
{{{24-5x=4}}}
Subtract 24 from both sides:
{{{-5x=-20}}}
Last, divide both sides by -5:
{{{x=4}}}