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Nixon334578
@Nixon334578
July 2022
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Решить уравнение.
2-2(x-1)=4(x-2) и ещё одно уравнение 3-y+2(5-y)=4y-8
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Greenomanka
Verified answer
1) 2-2(х-1) = 4(х-2)
2-2х+2 = 4х-8
-2х-4х = -8-2-2
-6х = -12
х = 2
Ответ: 2
2) 3-у+2(5-у) = 4у-8
3-у+10-2у = 4у-8
-3у-4у = -8-13
-7у = -21
у = 3
Ответ: 3
0 votes
Thanks 1
vmaluga2011
Verified answer
2-2(х-1)=4(х-2)
2-2х+2=4х-8
2+2+8=4х+2х
12=6х
х=12:6
х=2
3-у+2(5-у)=4у-8
3-у+10-2у=4у-8
3+10+8=4у+2у+у
21=7у
у=21:7
у=3
0 votes
Thanks 0
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Answers & Comments
Verified answer
1) 2-2(х-1) = 4(х-2)2-2х+2 = 4х-8
-2х-4х = -8-2-2
-6х = -12
х = 2
Ответ: 2
2) 3-у+2(5-у) = 4у-8
3-у+10-2у = 4у-8
-3у-4у = -8-13
-7у = -21
у = 3
Ответ: 3
Verified answer
2-2(х-1)=4(х-2)2-2х+2=4х-8
2+2+8=4х+2х
12=6х
х=12:6
х=2
3-у+2(5-у)=4у-8
3-у+10-2у=4у-8
3+10+8=4у+2у+у
21=7у
у=21:7
у=3