Question 977221

let' number be {{{x}}}

three more than one half a number is {{{x/2+3}}}

the same as: equal to

{{{ 17}}} minus three times the number: {{{17-3x}}}

so, you have

{{{x/2+3=17-3x}}}.......solve for {{{x}}}

{{{x/2+3x=17-3}}}
{{{x/2+6x/2=14}}}
{{{7x/2=14}}}
{{{7x=14*2}}}
{{{x=(14*2)/7}}}
{{{x=(cross(14)2*2)/cross(7)}}}
{{{x=2*2}}}
{{{x=4}}}