Question 570120
{{{4x+3x+2=7}}}
{{{7x+2=7}}}
{{{7x=7-2}}}
{{{7x/7=5/7}}}
{{{cross(7)x/cross(7)=5/7}}}
{{{x=5/7}}}


Check
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{{{4(5/7)+3(5/7)+2=7}}}
{{{20/7+15/7+2=7}}}
{{{(20+15)/7+2=7}}}
{{{35/7+2=7}}}
{{{cross(35)/cross(7)+2=7}}}

{{{5+2=7}}}
{{{7=7}}}