2)10х+25-х=50
9х=25
х=25/9
3)5^3*27/1*5^3*27*2 x=10^-1
1/2x=1/10
x=2/10
x=1/5
x=0,2
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2)10х+25-х=50
9х=25
х=25/9
3)5^3*27/1*5^3*27*2 x=10^-1
1/2x=1/10
x=2/10
x=1/5
x=0,2