Q1)
10x + 10y = 140
10x + 2y = 92
[ x = 8, y = 6 ]

Q1)
10x + 3y = 85
8x -3y = 41
[ x = 7, y = 5 ]

Q1)
8x + y = 67
7x -6y = 38
[ x = 8, y = 3 ]

Q2)
9x + 9y = 162
9x + 7y = 146
[ x = 10, y = 8 ]

Q2)
10x + 6y = 128
7x -6y = 8
[ x = 8, y = 8 ]

Q2)
4x + y = 37
5x + 6y = 70
[ x = 8, y = 5 ]

Q3)
10x + 8y = 76
2x + 8y = 28
[ x = 6, y = 2 ]

Q3)
10x + 4y = 84
6x -4y = 12
[ x = 6, y = 6 ]

Q3)
5x + y = 33
10x + 4y = 82
[ x = 5, y = 8 ]

Q4)
8x + 9y = 75
8x + 3y = 57
[ x = 6, y = 3 ]

Q4)
7x + 2y = 65
9x -2y = 47
[ x = 7, y = 8 ]

Q4)
4x + 7y = 75
9x -7y = 55
[ x = 10, y = 5 ]

Q5)
3x + 9y = 72
3x + 8y = 65
[ x = 3, y = 7 ]

Q5)
8x + 2y = 84
7x -2y = 51
[ x = 9, y = 6 ]

Q5)
5x + 2y = 36
7x -4y = 30
[ x = 6, y = 3 ]

Q6)
3x + 8y = 101
3x + 7y = 91
[ x = 7, y = 10 ]

Q6)
10x + 7y = 104
6x -7y = 40
[ x = 9, y = 2 ]

Q6)
4x + 5y = 30
10x + 10y = 70
[ x = 5, y = 2 ]

Q7)
8x + 4y = 64
6x + 4y = 58
[ x = 3, y = 10 ]

Q7)
10x + 4y = 122
4x -4y = 4
[ x = 9, y = 8 ]

Q7)
7x + 2y = 20
4x + 4y = 20
[ x = 2, y = 3 ]

Q8)
8x + 10y = 44
4x + 10y = 32
[ x = 3, y = 2 ]

Q8)
5x + y = 42
2x -y = 7
[ x = 7, y = 7 ]

Q8)
4x + y = 44
8x -3y = 48
[ x = 9, y = 8 ]

Q9)
9x + 9y = 144
9x + 8y = 137
[ x = 9, y = 7 ]

Q9)
5x + 7y = 65
8x -7y = 13
[ x = 6, y = 5 ]

Q9)
10x + 5y = 130
4x -5y = 10
[ x = 10, y = 6 ]

Q10)
3x + 8y = 41
3x + 3y = 21
[ x = 3, y = 4 ]

Q10)
8x + 2y = 74
4x -2y = 22
[ x = 8, y = 5 ]

Q10)
6x + 2y = 74
3x + 10y = 127
[ x = 9, y = 10 ]