Question 80027
{{{2/5-2/5-2*x/15=14/15-2/5}}}
find the common denominator for 5 and 15, which will be 15 so multiply {{{14/15}}} by 1 which doesn't change anything and multiply {{{-2/5}}} by 3
so 
{{{-2*x/15=(14-6)/15}}}
{{{-2*x/15=8/15}}}
cross multiply
{{{-2*x*15=8*15}}}
since both sides are multiples of 15 you can cancel them out, then you get
{{{-2*x=8}}}
divide  both sides by -2
{{{-2*x/-2=8/-2}}}
x=-4

:)