Question 638074
{{{(2+x)/(3+x)=3/8}}}...cross multiply and solve for {{{x}}}

{{{(2+x)8=3(3+x)}}}

{{{16+8x=9+3x}}}

{{{8x-3x=9-16}}}

{{{5x=-7}}}

{{{highlight(x=-7/5)}}}

check:

{{{(2+x)/(3+x)=3/8}}}

{{{(2+(-7/5))/(3+(-7/5))=3/8}}}


{{{((2*5-7)/5)/((3*5-7)/5)=3/8}}}


{{{((10-7)/cross(5))/((15-7)/cross(5))=3/8}}}

{{{(10-7)/(15-7)=3/8}}}

{{{3/8=3/8}}}