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Manejo de Espacios y Cantidades
Grupo:101
02/12/2011
Denisse Alejandra González A.
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Resolución de ecuaciones enteras de primer grado

Signos de Agrupación

4x - 6 = 6 + x
4x - x = 6 + 6
3x = 12
x = 12 / 3
x = 4

x-(2x+1) = 8(3x+3)
x-2x-1 = 24x+24
x-2x-24x= 24+1
-25x = 25
x = 25 / -25
x = -1
4x-12=6-12x
4x+2x=6+12
6x=18
x=18/6
x=3
12x-120=30+2x
12x-2x=30+120
10x=150
x=150/10
x=15
6x-21=-42+3x
6x-3x=-42+21
3x=21
x=21/3
x=7
2x+80=-40+6x
2x-6x=-40-80
-4x=-120
x=-120/-4
x=30
-x-30=-2x+90
-x+2x=90+30
x=120
x=120/1
x=120
16x-200=6x-20
16x-6x=-20+200
10x=180
x=180/10
x=18
4x-2=8+2x
4x-2x=8+2
2x=10
x=10/2
x=520x-300=-150+10x
20x-10x=-150+300
10x=150
x=150/10
x=15

Eliminación por igualación

x + 2y = 22
4x - y = 7
x = 22 - 2y
x = (7 + y) / 4
22 - 2y = (7 + y) / 4
88 - 8y = 7 + y
-9y = -81
y = 9
x = 22 - 2y
x = 22 - 2(9)
x = 4
x = 4y = 9
a- 2x - y/2 = 9/2
x - y/5 = 9/5

b- x - 2y - 1 = 0
y - 2x + 2 = 0

a- 2x - y/2 = 9/2
x - y/5 = 9/5
2x-9/2= y/2
(2x-9/2).2= y
4x-9= y...