To jest coś o jakiś proporcjach..
1. Rozwiąż równania:
a) 2/x = 3/x-1
b) 4/x+1 = 5/x
c) 3/5 = 2x-1/2-5x
d) 2x+1/1-2x = 2/3
e) 0,4x-1/3 = 2x-5/2
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
a)
2/x = 3/x-1
2x-2=3x
2x-3x=2
-x=2
x=-2
b)
4/x+1 = 5/x
4x=5x+5
4x-5x=5
-x=5
x=-5
c)
3/5 = 2x-1/2-5x
6-15x=10x-5
-15x-10x=-5-6
-25x=-11
x=0,44
d)
2x+1/1-2x = 2/3
6x+3=2-4x
6x+4x=2-3
2x=-1
x=-0,5
e)
0,4x-1/3 = 2x-5/2
0,8x-2=6x-15
0,8x-6x=-15+2
-5,2x=-13
x=2,5