Question 840561
{{{(2/3)(6x + 15) - (3/7)(21x - 14) = 19}}}
Multiply both side by {{{3*7}}},
{{{14(6x+15)-9(21x-14)=399}}}
{{{84x+210-189x+126=399}}}
{{{-105x+336=399}}}
{{{-105x=63}}}
{{{x=-63/105}}}
{{{highlight(x=-3/5)}}}