Question 1062815
{{{ 2*(-7/3 ) + x = 3/7 }}}
Multiply both sides by {{{ 21 }}}
{{{ -98  + 21x = 9 }}}
Add {{{ 98 }}} to both sides
{{{ 21x = 107 }}}
{{{ x = 107/21 }}}
107/21 must be added to -7/3
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check:
{{{ -14/3 + 107/21 = 3/7 }}}
{{{ -98/21 + 107/21 = 9/21 }}}
{{{ 107/21 = 107/21 }}}
OK