Question 774035
Given, these two equations:x-3y= -6
5x+3y= 42



x=-6+3y, from first equation.

5(3y-6)+3y=42 for second equation.

15y-30+3y=42
18y+30=42
18y=12
{{{18y/6=12/6}}}
3y=2
{{{y=2/3}}}
You can now, having found y, find x.