Question

w załączniku :)

Answer 1

1. 

(x+1)/2 - (6x-1)/5 =( x+2)/3 - 1

(5x+5)/10 - (12x-2)/10 = (x+2)/3 - 3/3

(5x+5-12x+2)/10 = (x+2-3)/3

(-7x+7)/10 = (x-1)/3

(-7x+7)/10 - (x-1)/3 = 0 

(-21x +21)/30 - (10x-10)/30 = 0 

(-21x +21 - 10x +10 )/30 =0 

(-31x +31)/30 = 0 

-31x/30 = -31/30  : (-31/30)

x=1 

 sprawdzenie

(1+1)/2 - (6*1-1)/5 = (1+2)/3- 1

2/2 - (6-1)/5 = 3/3 - 1

1 - 5/5 = 1-1

1-1 = 1-1

0=0

L=P

 

2.

1/2 [1/2(1/2*x+1)+1]+1=2

1/2[1/4x+1/2+1]+1=2

1/8x+1/4+1/2+1=2

1/8x+2/8+4/8+8/8=2

1/8x= 2-14/8

1/8x= 16/8 - 14/8

1/8x= 2/8     /*8

x=2

sprawdzenie 

1/2[1/2(1+1)+1]+1=2

1/2[1/2*2+1]+1=2

1/2[1+1]+1=2

1/2 *2 +1 =2

1+1=2

2=2

L=P