Question 118035
 the problem n/5=7/4 
{{{n/5}}} = {{{7/4}}}
:
Cross multiply and you have:
4n = 5*7
:
4n = 35
:
n = {{{35/4}}}
:
n = 8.75
:
:
Check in original equation, substitute 8.75 for n
{{{8.75/5}}} = {{{7/4}}}
1.75 = 1.75 confirms our solution