Question 313414
if the solution is (-3, 5) then all you have to do is plug in x and y in the equations and solve for A and B

1) A(-3)+2(5)=22
   -3A+10=22
    -3A = 12
      A=-4

2) 5(-3)+B(5) = 35
    -15 + 5B = 35
        5B = 50
          B= 10

so: A=-4 and B=10