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rolikverol
@rolikverol
July 2023
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Поможіть будьласка треба вже
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katewxws
1. 3х-5/7 = х+11/7;
3х - 5 = х + 11;
3х - х = 11 + 5;
2х = 16;
х = 8.
2. 4х - 5/3 = 6х + 11/5 - 2;
5 (4х - 5) = 3 (6х+11) - 30;
20х - 25 = 18х + 33 - 30;
20х - 25 = 18х + 3;
20х - 18х = 3 + 25;
2х = 28;
х = 14.
3. 2х - 1/3 = 3х + 2/6;
6 (2х-1) = 3 (3х + 2);
12х - 6 = 9х + 6;
12х - 9х = 6 + 6;
3х = 12;
х = 4.
Інший номер — четвертий — в фото. А відповідь четвертого: х = 14.
3 votes
Thanks 3
sokolovskamariya2011
А це точно правильно?
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Answers & Comments
3х - 5 = х + 11;
3х - х = 11 + 5;
2х = 16;
х = 8.
2. 4х - 5/3 = 6х + 11/5 - 2;
5 (4х - 5) = 3 (6х+11) - 30;
20х - 25 = 18х + 33 - 30;
20х - 25 = 18х + 3;
20х - 18х = 3 + 25;
2х = 28;
х = 14.
3. 2х - 1/3 = 3х + 2/6;
6 (2х-1) = 3 (3х + 2);
12х - 6 = 9х + 6;
12х - 9х = 6 + 6;
3х = 12;
х = 4.
Інший номер — четвертий — в фото. А відповідь четвертого: х = 14.