2 вроде у тебя не верен
Ответ:
1) х = 8цел3/4; 2) х = 41/42
Пошаговое объяснение:
1.
(5х - 1)/9 - (2х - 1)/6 = 2
2(5х - 1)/18 - 3(2х - 1)/12 = 2·18/18
2(5х - 1) - 3(2х - 1) = 36
10х - 2 - 6х + 3 = 36
4х = 35
х = 35 : 4
х = 8цел3/4
2.
(2·(2х - 1) - 1)/4 - (3 - 5(3х + 1))/6 = 3
(4х - 2 - 1)/4 - (3 - 15х - 5)/6 = 3
(4х - 3)/4 + (15х + 2)/6 = 3
3(4х - 3)/12 + 2(15х + 2) = 36/12
12х - 9 + 30х + 4 = 36
42х -5 = 36
42х = 41
х = 41/42
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Answers & Comments
2 вроде у тебя не верен
Ответ:
1) х = 8цел3/4; 2) х = 41/42
Пошаговое объяснение:
1.
(5х - 1)/9 - (2х - 1)/6 = 2
2(5х - 1)/18 - 3(2х - 1)/12 = 2·18/18
2(5х - 1) - 3(2х - 1) = 36
10х - 2 - 6х + 3 = 36
4х = 35
х = 35 : 4
х = 8цел3/4
2.
(2·(2х - 1) - 1)/4 - (3 - 5(3х + 1))/6 = 3
(4х - 2 - 1)/4 - (3 - 15х - 5)/6 = 3
(4х - 3)/4 + (15х + 2)/6 = 3
3(4х - 3)/12 + 2(15х + 2) = 36/12
12х - 9 + 30х + 4 = 36
42х -5 = 36
42х = 41
х = 41/42