Пошаговое объяснение:
7/2х + 1/3 = -1/60
3,5х = -1/60 - 1/3
3,5х = -1/60 - 20/60
3,5х = -21/60
3,5х = -0,35
х = -0,35 : 3,5
х = -0,1
3/(1/2х + 5) = 2/3
2(1/2х + 5) = 3 * 3
2/2х + 10 = 9
х + 10 = 9
х = 9 - 10
х = -1
1/(у²) - 2/у = -1
1/(у²) - 2/у + 1 = 0
(1/у - 1)² = 0
( (1-у)/у )² = 0
(1-у)/у = 0
1 - у = 0
у = 1 - 0
у = 1
20х + 5 - 1/3(2 - 30х) = 22/3
20х + 5 - 2/3 + 30/3х = 22/3
20х + 5 - 2/3 + 10х = 22/3
20х + 10х = 22/3 - 5 + 2/3
30х = 7. 1/3 - 5 + 2/3
30х = 2. 1/3 + 2/3
30х = 2. 3/3
30х = 3
х = 3 : 30
х = 0,1
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Answers & Comments
Пошаговое объяснение:
7/2х + 1/3 = -1/60
3,5х = -1/60 - 1/3
3,5х = -1/60 - 20/60
3,5х = -21/60
3,5х = -0,35
х = -0,35 : 3,5
х = -0,1
3/(1/2х + 5) = 2/3
2(1/2х + 5) = 3 * 3
2/2х + 10 = 9
х + 10 = 9
х = 9 - 10
х = -1
1/(у²) - 2/у = -1
1/(у²) - 2/у + 1 = 0
(1/у - 1)² = 0
( (1-у)/у )² = 0
(1-у)/у = 0
1 - у = 0
у = 1 - 0
у = 1
20х + 5 - 1/3(2 - 30х) = 22/3
20х + 5 - 2/3 + 30/3х = 22/3
20х + 5 - 2/3 + 10х = 22/3
20х + 10х = 22/3 - 5 + 2/3
30х = 7. 1/3 - 5 + 2/3
30х = 2. 1/3 + 2/3
30х = 2. 3/3
30х = 3
х = 3 : 30
х = 0,1