Question 33957
1) 2x+3y=5
2) 3x-y=20
To eliminate the "y" variable, multiply the 2nd eqution by 3
and add the 2nd to the 1st, as follows:
1)2x+3y=5
2)9x-3y=60
Adding get:
11x=65
  x= 65/11
Substitute that into the 1st or 2nd equation to solve for "y"
Using 2nd get: 3(65/11)-y=20
     y=195/11 - 20
     y=195/11 - 220/11
     y= -25/11
Cheers,
Stan H.