" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
567-511= 56 ta liczba do 56
x+y =11 ----> y = 11 -x
100x +10y +7 =10x +y + 511
90x +9y = 504
90x -9*(11 - x) = 504
90x +99 -9x = 504
81x =504 - 99
81x = 405
x = 405 : 81
x = 5
y = 11 - x = 11 - 5 = 6
Szukana liczba ,to 56
Spr. 567 - 56 = 511