Question 867928
What proportion?  You can try to solve for x in your equation, but your equation is <b>not</b> a proportion.


You wrote, x-3/4=x+3/7;
As rendered, {{{x-3/4=x+3/7}}}


Steps for solution:
{{{28(x-3/4)=28(x+3/7)}}}, because LCD is 4*7=28
{{{28x-21=28x+12}}}
You can not isolate x in this equation, and this equation has <b>NO solution</b>.


Also, before doing any steps, you could see from the given equation that left and right sides cannot be equal; both sides have term x and each side has a different constant term, and these constant terms are unequal; again cannot isolate x and no solution.