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1) Solve : 3x+y= 5; 2x+3y= 1
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Step-by-step explanation:
3x+y=5...................................(1)
2x+3y=1..................................(2)
Multiply by 3 equation (1) we get,
9x+3y=15
2x+3y=1
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7x=14
x=14/7
x=2
Substituting x=2 in (2) we get
2x+3y=1
2×2+3y=1
4+3y=1
3y=1-4
3y=-3
y=-3/3
y=-1
Therefore, x=2 and y=-1 are the solution of the given equation.
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