63 odjąć 3 x 8 wynik
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
63 odjąć 3 x 8 wynik
6x-6 -5x-15= x-8
x-21=x-8
0=16
sprzeczny
b) x(x-1)/4 - 2x+1/2 = -3/4 - 0,25(x+2)
x(x-1)/4 - 2x+1/2 = -3/4 - 1/4(x+2) /*4
x(x-1)-
c) 1/8(5,6x-4) 0,3x+4,5
1/8 (56/10x -4) 3/10 x+45/10
7/10x -1/2 3/10 x+45/10 /*10
7x-5 3x+45
7x-3x 45+5
4x 50 /:4
x 50/4
x 25/2
d) x-5/7 < 3x+2/21 /*21
21x-15<63+2
21x<80 /:21
x<80/21
e) 4-x/5 - x+2/3 2-8x/15 /*15
60 - 3x -15x +10 30 -8x
70-18x 30-8x
-18x+8x 30-70
-10x -40 /:(-10)
x 4