Q1)
9x + 4y = 91
7x + 4y = 77
[ x = 7, y = 7 ]

Q1)
4x + y = 40
5x -5y = 25
[ x = 9, y = 4 ]

Q1)
8x + 2y = 62
5x + 9y = 93
[ x = 6, y = 7 ]

Q2)
10x + y = 90
7x -y = 46
[ x = 8, y = 10 ]

Q2)
4x + y = 35
5x + 7y = 61
[ x = 8, y = 3 ]

Q2)
9x + y = 59
3x -7y = -17
[ x = 6, y = 5 ]

Q3)
7x + 4y = 50
6x + 4y = 48
[ x = 2, y = 9 ]

Q3)
5x + y = 25
4x -2y = 6
[ x = 4, y = 5 ]

Q3)
2x + 3y = 38
8x -4y = 24
[ x = 7, y = 8 ]

Q4)
2x + 8y = 100
2x + 6y = 80
[ x = 10, y = 10 ]

Q4)
5x + y = 37
6x -5y = 1
[ x = 6, y = 7 ]

Q4)
x + 2y = 26
5x -7y = -23
[ x = 8, y = 9 ]

Q5)
6x + 5y = 99
3x + 5y = 72
[ x = 9, y = 9 ]

Q5)
8x + 2y = 34
10x + 6y = 60
[ x = 3, y = 5 ]

Q5)
8x + 10y = 66
2x -9y = -41
[ x = 2, y = 5 ]

Q6)
5x + 10y = 105
5x + 3y = 42
[ x = 3, y = 9 ]

Q6)
3x + y = 38
9x -5y = 50
[ x = 10, y = 8 ]

Q6)
8x + 7y = 58
3x -2y = -6
[ x = 2, y = 6 ]

Q7)
3x + 9y = 39
3x + 6y = 33
[ x = 7, y = 2 ]

Q7)
8x + 3y = 79
10x -9y = 35
[ x = 8, y = 5 ]

Q7)
4x + y = 46
9x + 2y = 102
[ x = 10, y = 6 ]

Q8)
7x + 4y = 68
2x -4y = 4
[ x = 8, y = 3 ]

Q8)
6x + 3y = 33
7x -3y = 19
[ x = 4, y = 3 ]

Q8)
7x + 5y = 105
3x + 4y = 58
[ x = 10, y = 7 ]

Q9)
8x + y = 58
9x -y = 44
[ x = 6, y = 10 ]

Q9)
7x + y = 37
8x -8y = 24
[ x = 5, y = 2 ]

Q9)
9x + 6y = 99
4x -4y = 4
[ x = 7, y = 6 ]

Q10)
9x + 3y = 87
5x + 3y = 51
[ x = 9, y = 2 ]

Q10)
6x + 3y = 36
2x + 6y = 22
[ x = 5, y = 2 ]

Q10)
10x + 4y = 132
8x + 3y = 104
[ x = 10, y = 8 ]