1. SISTEMAS DE ECUACIONES
1. 5x – 2y = 4
6x – 3y = 3 R; x = 2, y = 3
2. 3x + 4y =15
6x + 5y = 21 R; x = 1, y = 3
3. 7x – 3y = 29
8x + 4y = 48 R; x = 5, y = 2
4. 5x – 3y = 7
7x + 2y = 16 R; x = 2 y=1
5. 8x + 2y = 10
9x – 3y = 6 R; x = 1 y=1
6. 5x – 2y = 4
6x – 3y = 3 R; x = 2, y = 3
7. 3x + 4y =15
6x + 5y = 21 R; x = 1, y = 3
8. 7x – 3y = 29
8x + 4y = 48 R; x = 5, y = 2
9. 5x – 3y = 7
7x + 2y = 16 R; x = 2 y=1
10. 8x + 2y = 10
9x – 3y = 6 R; x = 1 y=1
11. 5x – 2y = 4
6x – 3y = 3 R; x = 2, y = 3
12. 3x + 4y =15
6x + 5y = 21 R; x = 1, y = 3
13. 7x – 3y = 29
8x + 4y = 48 R; x = 5, y = 2
14. 5x – 3y = 7
7x + 2y = 16 R; x = 2 y=1
15. 8x + 2y = 10
9x – 3y = 6 R; x = 1 y=1
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2. Sistemas con denominadores
3x 5 y 3 x 4 y 23
+ =8 x=2 + = x=5
2 4 2 3 2
9x 6 y 2 x 6 y 23
= = 18 y=4 + = y=3
3 2 4 2 2
7 x 5 y 13 − 3x 5 y − 55
− = x=3 + = x=5
4 8 2 4 6 12
8x 6 y 8x 6 y
− = 16 y =-2 + =8 y = -1
2 3 4 3
6 x 12 y 2x 3 y
+ = 19 x=2 + =5 x=3
4 3 3 4
7x 5y 4 5x y
− = y=4 − =3 y=4
5 10 5 3 2
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