Apuntes Del 10 De Septiembre Del 2008

Resolucion De Ecuaciones Fraccionarias Con Denominadores.

Resolver La Ec:

3x - 2x X 7
__________ = _____ - ___
5 10 4

1.

3x 2x x 7
__ - ___ - __ - __
1 5 10 4


M.C.D
10.

30X - 4X -X -7
___________ = ___
10 4



10/ 1 = 10*3 = 30
10/5 = 2*2 = 4
10/10 = 1*1 = 1

25X -7
_____ = __
10 4

25X = 7 * 10

-__ __ ____
4 1

25X = -70

____
4


X = -70 / 25 = -70 = -7
__ ___ __ ___
4 1 100 10


_____________________________________________________________________

2.

Resolver La Ecuacion

2x - 1 - x + 13 3x + 5 ( x + 1 )
____ _____ = ______
3 24 8




2x - 1 x + 13 3x 5x + 5
____ - ______ = __ + ______
3 24 1 8


2x 1 x 13 = 3x 5x 5
__ - __ - __ - __ ___ + ___ + __
3 3 24 24 1 8 8


2x x 3 x 5x = 5 1 13
__ - __ - __ - __ ___ + ___ - __
3 24 1 8 8 3 24

24/3 = 8 * 2 = 16
24/24 = 1 * 1 = 1 = 16x - x - 72x + 15x
24/1 = 24 *3 = 72
24/8 = 3 * 5 = 15



24/8 = 3 * 5 = 15
24/3 = 8 *1 = 8 = 15 + 8 + 13
24/ 24 = 1 * 13 = 13


16x - x - 72x + 15x = 15 + 8 + 13....



-72x = 36

x = -36/72

x= -18/36

x = -9/18

x= -1/2