Odpowiedź:
Zad. 1
3/4 + 2/3 : (-8/12) = 9/12 + 8/12 : (-8/12) = 17/12 : (-8/12) = -2 1/12
Zad.2
-7 ( x + 2) + 4 = -3x
-7x -14 + 4 = -3x
-7x + 3x = 14 - 4
4x = 10
x = 10 : 4
x = 2,5
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:
Zad. 1
3/4 + 2/3 : (-8/12) = 9/12 + 8/12 : (-8/12) = 17/12 : (-8/12) = -2 1/12
Zad.2
-7 ( x + 2) + 4 = -3x
-7x -14 + 4 = -3x
-7x + 3x = 14 - 4
4x = 10
x = 10 : 4
x = 2,5
Szczegółowe wyjaśnienie: