
Ecuaciones con denominadores
Presentation
•
Mathematics
•
7th - 10th Grade
•
Practice Problem
•
Medium
M Ana López Montes
Used 16+ times
FREE Resource
14 Slides • 10 Questions
1
Ecuaciones con denominadores
2
La máxima complejidad que pueda presentar una ecuación de primer grado consiste en que tenga denominadores. Vamos a ver de forma muy práctica cómo resolver en ese caso.
¡¡Arrancamos con un ejemplo!!
3
Antes de empezar a resolver, vamos a prepararnos para no equivocarnos
a) poniendo 1 en el denominador donde no lo haya
y
b) metiendo entre paréntesis los numeradores formados por sumas o restas
4
5
Cuando lo hayamos hecho, calcularemos el mínimo común múltiplo de los denominadores con el fin de reducir a común denominador:
m.c.m. (2, 1, 6) =6
6
7
8
9
10
11
terminamos resolviendo la ecuación de primer grado sencilla que nos queda: transponemos términos y despejamos
12
13
HORA DE PRACTICAR
14
15
Multiple Choice
2x+1+2x=32x+4+x Resuelve la siguiente ecuación:
0
1
2
3
16
Multiple Choice
Resuelve la siguiente ecuación:
43x−2=21+x
4
0
–4
2
17
Multiple Choice
Resuelve la siguiente ecuación:
2x+4+1=5+32+x
16
2
–3
–2
18
Multiple Choice
19
Multiple Choice
Resuelve
1
2
3
4
Otra opción
20
Multiple Choice
Resuelve
no existen
1
3
infinitas
Otra opción
21
Multiple Choice
Resuelve
25/3
25/4
25/5
25/6
Otra opción
22
Multiple Choice
Resuelve:
3x−3=x−4x+3
x=2
x=−53
x=−2
x=51
23
Multiple Choice
Resuelve:
2x−32=9x
x=127
x=712
x=1
x=−127
24
Multiple Choice
Resuelve:
23+5x=25x
x=−53
x=53
x=−35
x=51
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