Question

hola me ayudan a encontrar la variable porfa con su procedimiento​

Answer 1

Respuesta:

A) 5

B) 3

C) 5

D) 8

E) 14

A) 3

B) 6

C) 5

D) 3

E) 5

Explicación paso a paso:

$8x + 10 = 50 \\ 8x = 50 - 10 \\ 8x = 40 \\ x = \frac{40}{8} \\ x = 5$

$18n + 36 = 90 \\ 18n = 90 - 36 \\ 18n = 54 \\ n = \frac{54}{18} \\ n = 3$

$23 = 3x + 8 \\ 23 - 8 = 3x \\ 15 = 3x \\ \frac{15}{3} = x \\ 5 = x$

$6x - 12 = 36 \\ 6x = 36 + 12 \\ 6x = 48 \\ x = \frac{48}{6} \\ x = 8$

$5x + 4 = 74 \\ 5x = 74 - 4 \\ 5x = 70 \\ x = \frac{70}{5} \\ x = 14$

$32 + 9x = 59 \\ 9x = 59 - 32 \\ 9x = 27 \\ x = \frac{27}{9} \\ x = 3$

$- 12 = 6 - 3x \\ - 12 - 6 = - 3x \\ - 18 = - 3x \\ \frac{ - 18}{ - 3} = x \\ 6 = x$

$12x - 28 = 32 \\ 12x = 32 + 28 \\ 12x = 60 \\ x = \frac{60}{12} \\ x = 5$

$6x - 25 = - 7 \\ 6x = - 7 + 25 \\ 6x = 18 \\ x = \frac{18}{6} \\ x = 3$

$4x - 5 = 15 \\ 4x = 15 + 5 \\ 4x = 20 \\ x = \frac{20}{4} \\ x = 5$