Q1)
4x + 7y = 57
2x + 7y = 39
[ x = 9, y = 3 ]

Q1)
9x + y = 68
6x -y = 37
[ x = 7, y = 5 ]

Q1)
9x + 2y = 54
8x + 4y = 68
[ x = 4, y = 9 ]

Q2)
9x + 7y = 101
3x + 7y = 71
[ x = 5, y = 8 ]

Q2)
10x + 2y = 84
5x -2y = 21
[ x = 7, y = 7 ]

Q2)
2x + 3y = 47
10x -6y = 46
[ x = 10, y = 9 ]

Q3)
6x + 3y = 48
2x + 3y = 20
[ x = 7, y = 2 ]

Q3)
4x + 3y = 43
8x -3y = 41
[ x = 7, y = 5 ]

Q3)
4x + y = 36
8x + 8y = 120
[ x = 7, y = 8 ]

Q4)
7x + 10y = 132
3x + 10y = 108
[ x = 6, y = 9 ]

Q4)
5x + 3y = 37
7x -3y = 23
[ x = 5, y = 4 ]

Q4)
3x + y = 23
2x + 2y = 22
[ x = 6, y = 5 ]

Q5)
9x + 7y = 68
2x + 7y = 26
[ x = 6, y = 2 ]

Q5)
7x + 8y = 44
6x -8y = 8
[ x = 4, y = 2 ]

Q5)
2x + 4y = 34
10x -4y = 2
[ x = 3, y = 7 ]

Q6)
10x + 5y = 75
6x + 5y = 55
[ x = 5, y = 5 ]

Q6)
7x + y = 75
6x -y = 55
[ x = 10, y = 5 ]

Q6)
8x + 3y = 92
4x -6y = 16
[ x = 10, y = 4 ]

Q7)
9x + 6y = 111
9x + 2y = 79
[ x = 7, y = 8 ]

Q7)
10x + 9y = 108
5x -9y = 27
[ x = 9, y = 2 ]

Q7)
5x + y = 26
2x + 3y = 26
[ x = 4, y = 6 ]

Q8)
2x + 8y = 62
2x + 4y = 38
[ x = 7, y = 6 ]

Q8)
7x + 3y = 58
10x -3y = 10
[ x = 4, y = 10 ]

Q8)
4x + 2y = 48
8x -4y = 48
[ x = 9, y = 6 ]

Q9)
5x + 10y = 100
3x + 10y = 96
[ x = 2, y = 9 ]

Q9)
7x + y = 30
10x -y = 21
[ x = 3, y = 9 ]

Q9)
10x + y = 100
4x + 2y = 56
[ x = 9, y = 10 ]

Q10)
10x + 8y = 118
4x + 8y = 76
[ x = 7, y = 6 ]

Q10)
7x + 10y = 83
5x -10y = 25
[ x = 9, y = 2 ]

Q10)
2x + 3y = 34
8x -6y = 28
[ x = 8, y = 6 ]