3. Solve : 5x – 3y = 8 ; 3x + y = 2
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Step-by-step explanation:
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Step-by-step explanation:
5x-3y=8
3x+y=2
multiple by both side
equation by3
9x+3y=6
5x-3y=8
let us add 1st and third equation
5x-3y=8
+
9x+3y=6
ans 14x = 14
x=1
substituting 1 in equation
3x+y=2
3×1+y=2
3+y=2
y=-1
ans x=1 y=-1
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