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IubluValiakarnaval
@IubluValiakarnaval
August 2022
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Помогите! Номер 1100!
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kkorovaa
1)4,5×(10х+5,5)=90
45х+24,75=90
45х=90-24,75
45х=65,25
х=65,25:45
х=1,45
4,5*(10*1,45+5,5)=90
4,5*(14,5+5,5)=90
4,5*20=90
90=90
2)10:(18-100х)=2,5
2,5*(18-100х)=10
45-250х=10
250х=45-10
250х=35
х=35:250
х=0,14
10:(18-100*0,14)=2,5
10:(18-14)=2,5
10:4=2,5
2,5=2,5
2 votes
Thanks 2
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Answers & Comments
45х+24,75=90
45х=90-24,75
45х=65,25
х=65,25:45
х=1,45
4,5*(10*1,45+5,5)=90
4,5*(14,5+5,5)=90
4,5*20=90
90=90
2)10:(18-100х)=2,5
2,5*(18-100х)=10
45-250х=10
250х=45-10
250х=35
х=35:250
х=0,14
10:(18-100*0,14)=2,5
10:(18-14)=2,5
10:4=2,5
2,5=2,5