solve by equating the coefficients for x and y: 3x +2y +1=0, 2x-3y +8=0
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first is 3x + 2y = -1
next is 2x - 3y =-8
Now multiply first by 3 and second eq by 2 to equate coefficients of y
so we get 9x + 6y = -3
+4x - 6y = -16
-----------------------
13x =-19
hence x = -19/13
subsequently y = -17/13
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