Question

1. 3(x – 5) + 6x = 4(2x + 3)

2. 5(a – 2) + 5a = 3(3a + 5)

3. 3(x + 4) – 2 = 5(2x – 1) – 6

4. 4(2x + 1) + 5 = 3(x + 7) – x

5. 12 – (x + 2) = 4(x – 5)

6. 20 – (x + 5) = 3(x – 3)

7. 18 + (x – 4) = 5(x + 1)

8. (x + 3)(x + 2) = x(x + 4) – 2

9. (x + 6)(x + 3) = x(x + 8) –3

10. a(a + 5) + 10 = (a + 2)(a + 4)

11. 5(x – 3) – 2(x – 7)=7x + 2(2x – 1)

12. 6(x – 2)– 3(x – 1) = 4x + 3(x – 2)

13. 6x – 4 + 3x = 7x + 30 +x – 8

14. 13x – 7 – 5x = 10x – 27 – 7x

15. –9x + 8 + 7x = –6x + 5 – 4x

16. x
2 + 7x – 3 = (x + 5)(x + 4)

17. (x + 7)(x + 3) = (x + 8)(x + 1)

18. (x + 8)(x – 8) = x2 – 4x

19. (x + 3)(x - 3) – 2(x + 1) = x(x - 1) – 3

20. (x + 2)(x + 3) = x2 + 4x + 10

21. (x + 4)(x + 5) = (x + 2)(x + 6)

22. (x + 5)(x – 5) – x

2 = -2x + 25

23. (x + 5)(x - 3) = x2 + x + 1

24. (x - 4)(x - 3) = x2 + 2x + 8

Answer 1

1.- 3(x – 5) + 6x = 4(2x + 3)

3x - 15 + 6x = 8x + 12

9x - 8x = 12 + 15

x = 27

2.- 5(a – 2) + 5a = 3(3a + 5)

5a - 10 + 5a = 9a + 15

10a - 9a = 15 + 10

a = 25

3.- 3(x + 4) – 2 = 5(2x – 1) – 6

3x + 12 - 2 = 10x - 5 - 6

10 + 11 = 10x - 3x

21 = 7x

3 = x

4.- 4(2x + 1) + 5 = 3(x + 7) – x

8x + 4 + 5 = 3x + 21 - x

8x - 2x = 21 - 9

6x = 12

x = 2

5.- 12 – (x + 2) = 4(x – 5)

12 - x - 2 = 4x - 20

30 = 5x

6 = x

6.- 20 – (x + 5) = 3(x – 3)

20 - x - 5 = 3x - 9

24 = 4x

6 = x

7.- 18+ (x – 4) = 5(x + 1)

18 + x - 4 = 5x + 5

9 = 4x

9/4 = x

2,25 = x

8.- (x + 3)(x + 2) = x(x + 4) – 2

x(al cuadrado) + 5x + 6 = x(al cuadrado) + 4x - 2

x = -8

9.- (x + 6)(x + 3) = x(x + 8) –3

x(al cuadrado) + 9x + 18 = x(al cuadrado) + 8x - 3

x = -21

10.- a(a + 5) + 10 = (a + 2)(a + 4)

a(al cuadrado) + 5a + 10 = a(al cuadrado) + 6a + 8

2 = x

11.- 5(x – 3) – 2(x – 7)=7x + 2(2x – 1)

5x - 15 - 2x + 14 = 7x + 4x - 2

1 = 8x

1/8 = x

0,125 = x

12. 6(x – 2)– 3(x – 1) = 4x + 3(x – 2)

6x - 12 - 3x + 3 = 4x + 3x - 6

-3 = 4x

-3/4 = x

-0,75 = x

13. 6x – 4 + 3x = 7x + 30 +x – 8

9x - 8x = 22 + 4

x = 26

14. 13x – 7 – 5x = 10x – 27 – 7x

8x - 3x = -27 + 7

5x = -20

x = -4

15. –9x + 8 + 7x = –6x + 5 – 4x

-2x + 10x = 5 - 8

8x = -3

x = -3/8

x = -0,375

16. x

2 + 7x – 3 = (x + 5)(x + 4)

???

17. (x + 7)(x + 3) = (x + 8)(x + 1)

x(al cuadrado) + 10x + 21 = x(al cuadrado) + 9x + 8

x = -13

18. (x + 8)(x – 8) = x2 – 4x

????

19. (x + 3)(x - 3) – 2(x + 1) = x(x - 1) – 3

x(al cuadrado) - 9 - 2x - 2 = x(al cuadrado) - x - 3

-8 = x

20. (x + 2)(x + 3) = x2 + 4x + 10

????

21. (x + 4)(x + 5) = (x + 2)(x + 6)

x(al cuadrado) + 9x + 20 = x(al cuadrado) + 8x + 12

x = -8

22. (x + 5)(x – 5) – x

2 = -2x + 25

????

23. (x + 5)(x - 3) = x2 + x + 1

????

24. (x - 4)(x - 3) = x2 + 2x + 8

x(al cuadrado) - 7x + 12 = ????

easy