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emmasim [6.3K]
3 years ago
11

¿Cuál procedimiento resuelve la ecuación 7 (2m + 3) - 5m = 2(4m + 8) + 9 ?

Mathematics
2 answers:
Reil [10]3 years ago
8 0

Tenemos que resolver una ecuación, para lo que usaremos algebra simple.

La solución es m = 4.

La ecuación es:

7*(2m + 3) - 5m = 2*(4m + 8) + 9

Lo primero que debemos hacer es expandir ambos lados:

7*2*m + 7*3 - 5*m = 2*4*m + 2*8 + 9

14*m + 21 - 5*m = 8*m + 16 + 9

Ahora debemos mover todos los terminos con la incognita, m, al mismo lado. Los podemos mover a la izquierda (los otros terminos se mueven a la derecha)

14*m - 5*m - 8*m = 16 + 9 - 21

Ahora resolvemos:

(14 - 5 - 8)*m = 4

m = 4

Si quieres aprender más, puedes leer:

brainly.com/question/24504419

maxonik [38]3 years ago
6 0

Answer:

4

Step-by-step explanation:

7(2m+3)-5m=2(4m+8)+9

14m+21-5m=8m+16+9

14m-5m-8m+21=16+9

9m-8m+21=25

m+21=25

m=25-21

m=4

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