Question 369018
List each problem separately.
Where are you having problems solving the systems??
Also include partial work.
You're more likely to receive a response.
1.{{{x+y=9}}} 
2.{{{x+2y=13}}}
Subtract eq. 1 from eq. 2,
{{{x+2y-x-y=13-9}}}
{{{highlight(y=4)}}} 
Now use either equation to solve for {{{x}}}.