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kaliev05
@kaliev05
July 2022
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1)4(5-x)=3x-1
2)3(x-2)=x+4
3)5(x-1)=4x+3
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Ололооооо
1) 20 - 4х = 3х -1
7х = 21
х = 3
2) 3х - 6 = х + 4
2х = 10
х = 5
3) 5х - 5 = 4х + 3
х = 8
2 votes
Thanks 2
kaliev05
Спасибо
отличник2752
1) 4 (5-х)=3х-1
20-4х=3х-1
-4х-3х= -1-20
-7х=-21
х= -21:(-7)
х=3
2) 3(х-2)=х+4
3х-6=х+4
3х-х=4+6
2х=10
х=10: 2
х=5
3) 5 (х-1)=4х+3
5х-5=4х+3
5х-4х=3+5
1х=8
х= 8: 1
х=8
5 votes
Thanks 12
kaliev05
Спасибо
отличник2752
всегда рада помочь
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Answers & Comments
7х = 21
х = 3
2) 3х - 6 = х + 4
2х = 10
х = 5
3) 5х - 5 = 4х + 3
х = 8
20-4х=3х-1
-4х-3х= -1-20
-7х=-21
х= -21:(-7)
х=3
2) 3(х-2)=х+4
3х-6=х+4
3х-х=4+6
2х=10
х=10: 2
х=5
3) 5 (х-1)=4х+3
5х-5=4х+3
5х-4х=3+5
1х=8
х= 8: 1
х=8