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allaguseva1980
@allaguseva1980
July 2022
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решите уравнения пж
5х-7=х+9
2(5+3х)= -2
0,77+0,3х=0,5-0,6х
3(у-4)=4(3у+6)
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Помеха7
5х-7=х+9
5х - х = 9+7
6х = 16
х = 16/6 = 2 4/6 = 2 2/3
2(5+3х)= -2
10 +6х = -2
6х = -2 -10
6х = -12
х = -2
0,77+0,3х=0,5-0,6х
0,3х +0,6х = 0.5 -0.77
0,9х = 1,27
х= 12,7/9 = 1 3,7/9
3(у-4)=4(3у+6)
3у - 12 = 12у +24
3у -12у = 24 +12
-9у = 36
у = -4
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Answers & Comments
5х-7=х+9
5х - х = 9+7
6х = 16
х = 16/6 = 2 4/6 = 2 2/3
2(5+3х)= -2
10 +6х = -2
6х = -2 -10
6х = -12
х = -2
0,77+0,3х=0,5-0,6х
0,3х +0,6х = 0.5 -0.77
0,9х = 1,27
х= 12,7/9 = 1 3,7/9
3(у-4)=4(3у+6)
3у - 12 = 12у +24
3у -12у = 24 +12
-9у = 36
у = -4