Question

Równiania:

[1,7:(23-x)]*21,25=2

[1,7:(1x-3,75)]:=1

Bardzo prosze o rowiązanie tego !!!! Daje najj. !!

Answer 1

[ 1,7 : (23 –x)]*21,25 = 2 i 5/6

[ 17/10 * 1/ (23 –x)]*85/4 = 17/6    /*12

 17/(230 –10x) * 255= 34

4335/(230 –10x) = 34

34(230-10x) = 4335

7820 – 340x = 4335

-340x = 4335 – 7820

-340x = -3485   /  : (-340)

x= 10,25

 

[1,7 : ( 1 i2/3x – 3,75)] : 8/35 = 1 i 5/12

[17/10 : ( 5/3x – 15/4)] * 35/8 = 17/12   /* 24

[17/10 : ( 5/3x – 15/4)] * 105 = 34  

[17/10 * 1/( 5/3x – 15/4)]* 105 = 34

[17/(50/3 x – 150/4)] * 105 = 34

1785/(50/3 x – 150/4) = 34

34 ( 50/3 x – 150/4) = 1785

1700/3 x  - 1275 =1785

1700/3 x = 1785 + 1275

1700/3 x = 3060   /*3

1700x = 9180    /1700

x = 5,4