Odpowiedź:
c
20:5
c)
20/(x + 1) = 5
5(x + 1) = 20
5x + 5 = 20
5x = 20 - 5 /:5
x = 15/5 = 3 ≠ 4
d)
5(x - 4) - x = 8
5x - 20 - x = 8
4x = 8 + 20 /:4
x = 28/4 = 4 ≠ 7
Szczegółowe wyjaśnienie:
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Odpowiedź:
c
20:5