PROSZĘ POMÓŻCIE MUSZE MIEĆ TO NA DZISIAJ
1. y/2+1/3=7/6
2. (y+3)/2-(1-y)=3,5
3. (2y+4)/4=1/2y+1
4. (y-2)/3+1/15-(2y-5)/3=(8-4y)/5
5. 0,2x+0,3=1,3
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
1. y/2+1/3=7/6
1/2 y + 1/3 = 1 1/6
1/2 y = 1 1/6 - 1/3
1/2 y = 5/6 | * 2
y = 1 4/6
2.(y+3)/2-(1-y)=3,5
1/2 y + 1 1/2 - 1 + y = 3,5
1 1/2 y = 3,5 - 1 1/2 - 1
1 1/2 y = 1 | : 1 1/2
y = 2/3
3. (2y+4)/4=1/2y+1
1/2 y + 1 = 1/2 y + 1
1/2 y - 1/2 y = 1 - 1
0 = 0
Równanie tożsamościowe
4. (y-2)/3+1/15-(2y-5)/3=(8-4y)/5
1/3 y - 3/2 + 1/15 - 2/3y - 1 2/3 = 1 3/5 - 4/5y
-1/3y + 4/5y = 1 3/5 + 3/2 - 1/15 + 1 2/3
7/15y = 1 6/10 + 15/10 - 1/15 + 1 2/3
7/15 y = 3 1/10 + 45/30 - 2/30 + 1 20/30
7/15 y = 3 1/10 + 43/30 + 1 20/30
7/15 y = 3 3/30 + 93/30
7/15 y = 6 6/30
5. 0,2x+0,3=1,3
0,2x = 1,3 - 0,3
0,2x = 1 |*5
x = 5