Question 831608
More than one way to do this, if Elimination Method is how.  One good way, multiply the first equation's members by 3 and subtract one equation from the other to eliminate the x; and then find the value of y.


That first equation becomes {{{0.3x+0.18y=1.5}}};


{{{0.3x-0.2y-(0.3x+0.18y)=3.4-1.5}}}
{{{-0.2y=1.9}}}
{{{y=-1.9/0.2=-1.9*5=highlight(-9.5=y)}}}.

Find x any way you like.