X+y=3 , 3x-2y-4=0 by determinant method find D
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Here's your answer X=5 y=-2
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Answer:
Step-by-step explanation:
X+Y =3....... 1
3X-2Y-4=O
3X-2Y=4.......2
Multiply equation 1 by 2
2×X+2×Y=2×3
2X+2Y=6.........3
Add eq 2 and 3,
3X-2Y=4
+
2X+2Y=6
_____________
5X = 10
X =10/5
X = 2
Place X=2 in eq. 1
2+Y = 3
Y =3-2
Y = 1
Solution of equation is (2, 1)
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