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2014-10-12T11:12:16+03:00


60:(3Y+2)=12

3y+2=60:12=5

3y=5-2=3

y=3:3=1

2(x-3)=216

x-3=216:2=108

x=108+3=111

(x-80);24=32

x-80=32x24=768

x=768+80=848