А)Х+(3,1/2+5,5/8)=20 Б)X-(12.1/5-7.4/15)=5.2/5 В)100-Х=14,3/5+214/5 Г)21,3/5-Х=4,3/10+5,1/2. Created by alikkniazian. matematika-ru

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А)Х+(3,1/2+5,5/8)=20 Б)X-(12.1/5-7.4/15)=5.2/5

В)100-Х=14,3/5+214/5 Г)21,3/5-Х=4,3/10+5,1/2

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Катя20007 А)х=20-(3 1/2+5 5/8) г)21 3/5-х=9 4/5
х=20-9 1/8 х=21 3/5-9 4/5
  х=10 7/8 х=11 4/5
10 7/8+(3 1/2+5 5/8)=10 7/8+9 1/8=19 8/8=20 21 3/5-11 4/5=4 3/5+5 1/2
б)х=5 2/5+(12 1/5-7 4/5) 21 3/5-11 4/5=9 4/5
х=5 2/5+4 14/15
х=10 1/3
10 1/3-(12 1/5-7 4/15)=10 5/15-4 14/15=5 2/5
в)100-х=36 2/5
х=100-36 2/5
х=63 3/5
100-63 3/5=36 2/5

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k42 18120 i vtoroe primer c 18357

c-183=57 k(42-18)=120...

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k42 18120 i vtoroe primer c 18357

c-18*3=57 k*(42-18)=120...

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c-183=57 k(42-18)=120...