Question

Obtén en una ecuación de la forma ax + b = c, con a, b y c números reales. Luego, resuelvela. (con verificación y proceso por favor)

Answer 1

a.

x - 5x = -13

-4x = -13

x = 13/4

b.

9x - 2x = 4

7x = 4

x = 4/7

c.

6x = -7

x = -7/6

d.

4x - 5x - 3x - 4x = 9

-8x = 9

x = -9/8

e.

4x - 9x - 7x + 5x = -9 - 2

-7x = -11

x = 11/7

f.

3x - 8x + 9x + 7x = 12

11x = 12

x = 12/11

Verificación:

a. 13/4 = 5 * (13/4) - 13

13/4 = 65/4 - 13

13/4 = 13/4

b.

9 * 4/7 - 4 = 2 * 4/7

36/7 - 4 = 8/7

8/7 = 8/7

c.

-7/6 + 5 * (-7/6) = -10 + 3

-7/6 - 35/6 = -7

-42/6 = -7

-7 = -7

d.

4 * (-9/8) - 5 * (-9/8) - 9 = 3 * (-9/8) + 4 * (-9/8)

-36/8 + 45/8 - 9 = -27/8 - 36/8

-63/8 = -63/8

e.

4 * (11/7) - 9 * (11/7) + 2 = 7 * (11/7) - 5 * (11/7) - 9

44/7 - 99/7 + 14/7 = 77/7 - 55/7 - 63/7

-41/7 = -41/7

f.

3 * (12/11) - 8 * (12/11) + 9 * (12/11) = 12 - 7 * (12/11)

36/11 - 96/11 + 108/11 = 132/11 - 84/11

48/11 = 48/11