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Mikane
@Mikane
July 2022
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3х-5(6х-7)=5-6(2х+5)
-3(х+12)-2(х-18)=-5х
4х=6+2(4х-1)
ПОМОГИТЕ РЕШИТЬ ПЖ)
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lenapanova
Verified answer
3х - 5(6х - 7) = 5 - 6(2х + 5)
3х - 30х + 35 = 5 - 12х - 30
3х - 30х + 12х = =30 - 35
-15х = - 30
х = 2
-3(х + 12) - 2(х - 18) = -5х
-3х - 36 - 2х + 36 = - 5х
-5х = -5х
х = 1
4х = 6 + 2(4х - 1)
4х = 6 + 8х - 2
4х = 8х + 4
4х -8х = 4
-4х = 4
х = -1
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Answers & Comments
Verified answer
3х - 5(6х - 7) = 5 - 6(2х + 5)3х - 30х + 35 = 5 - 12х - 30
3х - 30х + 12х = =30 - 35
-15х = - 30
х = 2
-3(х + 12) - 2(х - 18) = -5х
-3х - 36 - 2х + 36 = - 5х
-5х = -5х
х = 1
4х = 6 + 2(4х - 1)
4х = 6 + 8х - 2
4х = 8х + 4
4х -8х = 4
-4х = 4
х = -1