Question 29143
{{{ (x - 4)/2 - 1/5 = (7x + 1)/20}}}

{{{(5(x-4)-2)/10 = (7x+1)/20}}}

{{{(5x-20-2)/10}}} = {{{(7x+1)/20}}}

{{{(5x-22)/10}}} = {{{(7x+1)/20}}}

{{{(10x-44)/20}}} = {{{(7x+1)/20}}}

{{{10x-44 = 7x + 1}}}

{{{3x = 45}}}

{{{x=15}}}