SOLUTION: i can't figure this out and i need help!! i need to understand how to slove this system: -2x+3y=15 10x-11y=9

Question 152772This question is from textbook
: i can't figure this out and i need help!!
i need to understand how to slove this system:
-2x+3y=15
10x-11y=9 This question is from textbook

Answer by oscargut(2103) (Show Source): You can put this solution on YOUR website!
-2x+3y=15
10x-11y=9
we have a system of equations so we have to fin x and y that verifies both equations
doing 1st eq by 5
-10x+15y=75
10x-11y=9
adding both eq
4y-84 then y=21
using 2nd eq
10x-11(21)=9
10x=9+231=240
x=24

so solution is x=24,y=21

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