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damusya22
@damusya22
July 2022
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TimaKosto
1) (5х-1)/9 - (2x-1)/6=2
Общий знаменатель 18.
(10х-2) - (6х - 3) = 36
10х - 2 - 6х + 3 = 36
4х + 1 = 36
4х = 35
х = 35/4
х = 8,75
2) 2(х-3) + 3(3-2х) -4(3х-2) = 5(4-5х)
2х-6 + 9 -6х -12х +8 -20 +25х = 0
-16х - 9 + 25х = 0
9х-9=0
х=1
3) (3+х)/2 - (2х+7)/3 = 2
Общий знаменатель 6
9+3х - 4х - 14 = 12
- 5 - х - 12 = 0
- 17 - х = 0
х = -17
4) (3-х)/2 - (7-2х)/ 3 = 4
Общий знаменатель 6
9 - 3х - 14 + 4х = 24
- 5 + х - 24 = 0
- 29 + х = 0
х = 29
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Answers & Comments
Общий знаменатель 18.
(10х-2) - (6х - 3) = 36
10х - 2 - 6х + 3 = 36
4х + 1 = 36
4х = 35
х = 35/4
х = 8,75
2) 2(х-3) + 3(3-2х) -4(3х-2) = 5(4-5х)
2х-6 + 9 -6х -12х +8 -20 +25х = 0
-16х - 9 + 25х = 0
9х-9=0
х=1
3) (3+х)/2 - (2х+7)/3 = 2
Общий знаменатель 6
9+3х - 4х - 14 = 12
- 5 - х - 12 = 0
- 17 - х = 0
х = -17
4) (3-х)/2 - (7-2х)/ 3 = 4
Общий знаменатель 6
9 - 3х - 14 + 4х = 24
- 5 + х - 24 = 0
- 29 + х = 0
х = 29