Question 82595
Lets start with 

{{{x+y=2}}}
{{{x-y=4}}}


*[invoke solving_linear_system_by_elimination 1, 1, 2, 1, -1, 4]



Now lets solve 

{{{5x-3y=13}}}
{{{4x-3y=11}}}


*[invoke solving_linear_system_by_elimination 5, 3, 13, 4, -3, 11]