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kinderik
@kinderik
June 2022
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agasikkk
1)25^(3x-2/7)=5
5^(6x-4/7)=5
6x-4/7=1
6x=1целая 4/7
x=11/7*1/6=11/42
2)10^(8/3x-2/9)=1
8/3x-2/9
x=2/9*3/8=1/12 Проверка: 10^(8/3*1/12-2/9)=1
10^0=1 1=1
3)2^(x-(6x-3))/4=1/16 1/16=2^-4
4x-6x+3=-4
-2x=-7
x=3.5
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Answers & Comments
5^(6x-4/7)=5
6x-4/7=1
6x=1целая 4/7
x=11/7*1/6=11/42
2)10^(8/3x-2/9)=1
8/3x-2/9
x=2/9*3/8=1/12 Проверка: 10^(8/3*1/12-2/9)=1
10^0=1 1=1
3)2^(x-(6x-3))/4=1/16 1/16=2^-4
4x-6x+3=-4
-2x=-7
x=3.5