Question 1083794
{{{(7/5)(x-4y) - (2/3)(2x-7y)=(21/15)(x-4y)-(10/15)(2x-7y)}}}
{{{(7/5)(x-4y) - (2/3)(2x-7y)=(21(x-4y)-10(2x-7y))/15}}}
{{{(7/5)(x-4y) - (2/3)(2x-7y)=((21x-84y)-(20x-70y))/15}}}
{{{(7/5)(x-4y) - (2/3)(2x-7y)=(21x-84y-20x+70y)/15}}}
{{{(7/5)(x-4y) - (2/3)(2x-7y)=(x-14y)/15}}}