Question

REALIZAR LOS SIGUIENTES EJERCICIOS:

Answer 1

a.

3x + 5 = 5x - 13

3x - 5x / - 13 - 5

- 2x = - 18

x = - 18 / - 2

x = 9

b.

5(7 - x) = 31 - x

35 - 5 x = 31 - x

- 5x + x = 31 - 35

- 4x = - 4

x = - 4/- 4

x = 1

c.

4(2 -3x) = - 2x - 27

8 - 12x = - 2x - 27

- 12x + 2x = - 27 - 8

- 10x = -35

x = - 35/- 10

x = 3.5

j.

$\frac{x}{5} + \frac{x}{3} - 1 = \frac{x}{2} \\ \frac{x}{5} + \frac{x}{3} - \frac{x}{2} = 1 \\ \frac{6x}{30} + \frac{10x}{30} - \frac{15x}{30} = 1 \\ \frac{x}{30} = 1 \\ x = 1 \times 30 \\ x = 30</strong></p><p><strong>[tex]\frac{x}{5} + \frac{x}{3} - 1 = \frac{x}{2} \\ \frac{x}{5} + \frac{x}{3} - \frac{x}{2} = 1 \\ \frac{6x}{30} + \frac{10x}{30} - \frac{15x}{30} = 1 \\ \frac{x}{30} = 1 \\ x = 1 \times 30 \\ x = 30$

k.

$6( \frac{2x + 4}{3} = \frac{x}{6} - 3) \\ 4x + 8= x - 18 \\ 4x - x= - 18 - 8 \\ 3x = - 26 \\ x = \frac{ - 26}{3} \\ x = −8.6666666667$

l.

$\frac{x + 11}{2} - \frac{2x +3 }{5} = 5 \\10(\frac{x + 11}{2} - \frac{2x +3 }{5} = 5) \\ 5x + 55 - 4x - 6 = 50 \\ 5x - 4x = 50 - 55 + 6\\ x = 1$