Question

DOY CORONA...................con procedimiento plisssss

Answer 1

20. n = 5

21. x = 6

Explicación paso a paso:

20.

$2n + 1 + n = 16$

$3n + 1 = 16$

$3n = 16 - 1$

$3n = 15$

$n = \frac{15}{3}$

$n = 5$

21.

$x + x + 1 + 2x = 25$

$4x + 1 = 25$

$4x = 25 - 1$

$4x = 24$

$x = \frac{24}{4}$

$x = 6$