2 2/3 : (y+1/3)=1 1/2 : (y-1 1/8). Created by sanyapet2016. matematika-ru

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2 2/3 : (y+1/3)=1 1/2 : (y-1 1/8)

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ndusha

Verified answer

2 2/3 : (y+1/3)=1 1/2 : (y-1 1/8)
2 2/3(y-1 1/8)=1 1/2 (y+1/3)
8/3(y-9/8)=3/2 (y+1/3) умножим на 6
16(y-9/8)=9 (y+1/3)
16у-16*9/8=9у+9*1/3
16у-18=9у+3
16у-9у=3+18
7у=21
у=21/3=7

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