Ejercicio1 Algebra Y Principios De Fisica Unidad 2 EAD

Ejercicio Unidad 2

1.) 3x+5-2x+6x=4x+8

3x+5+4x=4x+8

7x+5-5-4x = 4x-4x+8-5

7x-4x = 3

3x= 3/3

x= 1

2.) 3(x+5)+2x=7x+9

3x+15+2x = 7x+9

5x+15-15-7x = 7x-7x+9-15

5x-7x = 9 -15

-2x = -6

x = (-6)/(-2)

x = 3

3.) (5x+2)/4 = x+1

(4) (5x+2)/4 = x+1(4)

5x+2-2 = 4x+4-2

5x-4x = 4- 2

x=2

4.) (3(x+2))/2 = 4(x+1)+3

(2) 3x+6 =4x+7

3x+6-6 -4x = 4x-4x+7-6

x=1

5.) (4x-6)/3 + (2(x+4))/5 = 2x

(15) (4x-6)/3 + (15) (2x+8)/5 = 2x (15)

(5) 4x-6 + (3) 2x+8 = 30x

20x -30 + 6x +24 = 30x

26x -6+6 = 30x-30x+6

26x = 6/26

x = 0.23

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