Question 1200082
a) If you multiply the first equation by -2, you get the second equation so they share an infinite number of solutions. 
Pick one. Set {{{x=0}}} and solve for {{{y}}}
{{{2(0)+3y=-5]]]
Solve for {{{y}}}.
Call that {{{y[1]}}}
.
.
.
b){{{2x+3y=0}}}
{{{-4x-6y=0}}}
Again pick a point, x, and solve for y.
{{{x=0}}}
{{{2(0)+3y=0}}}
Solve for {{{y[2]}}}.