Решите уравнение: 8y-2/5/3=3y+1/0,8. Created by nexizen. matematika-ru

0,8...

zhenyaM2002

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(8у-2) : 5/3= (3у+1) : 0,8
(8у-2)*0,8= 5/3 *(3у+1)
6,4у-1,6= 15/3 *у +5/3
6,4у-5у= 5/3 +16/10
1,4у= (50+48)/30
1,4у= 98/30
у= 98/30 : 14/10= 98*10/30*14=7*1/3*1
у=7/3= 2 1/3
Проверим:
(8* 7/3 -2 ):5/3=( 3* 7/3 +1) :0,8
(56/3-6/3): 5/3= (21/3+1):0,8
50/3 * 3/5 = 8:0,8
50/5= 10
10=10

2 votes Thanks 2

lenapanova

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3 votes Thanks 3

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