25x+y= 1200

Answer: x=48 y=47.

(2) 18x+23y=2303

74x-y= 1998

Answer: x=27 y=79

(3) 44x+90y=7796

44x+y=3476

Answer: x=79 y=48

⑷76x-66y = 4082

30x-y=2940

Answer: x=98 y=5 1.

(5) 67x+54y=8546

7 1x-y=5680

Answer: x=80 y=59

1.2x+9y=8 1

3x+y=34

2.9x+4y=35

8x+3y=30

3.7x+2y=52

7x+4y=62

4.4x+6y=54

9x+2y=87

5.2x+y=7

2x+5y= 19

6.x+2y=2 1

3x+5y=56

7.5x+7y=52

5x+2y=22

8.5x+5y=65

7x+7y=203

9.8x+4y=56

x+4y=2 1

10.5x+7y=4 1

5x+8y=44

1 1.7x+5y=54

3x+4y=38

12.x+8y= 15

4x+y=29

13.3x+6y=24

9x+5y=46

14.9x+2y=62

4x+3y=36

15.9x+4y=46

7x+4y=42

16.9x+7y= 135

4x+y=4 1

17.3x+8y=5 1

x+6y=27

18.9x+3y=99

4x+7y=95

19.9x+2y=38

3x+6y= 18

20.5 times +5y=45

7x+9y=69

2 1.8x+2y=28

7x+8y=62

22.x+6y= 14

3x+3y=27

23.7x+4y=67

2x+8y=26

24.5x+4y=52

7x+6y=74

25.7x+y=9

4x+6y= 16

26.6x+6y=48

6x+3y=42

27.8x+2y= 16

7x+y= 1 1

28.4 times +9y=77

8x+6y=94

29.6x+8y=68

7x+6y=66

30.2x+2y=22

7x+2y=47