31Dec

1) x:3-11=16 2)4:x+6=13 3)(490-x)-250=70

serge32 Математика 1 1

1) x:3-11=16 2)4:x+6=13 3)(490-x)-250=70

Posted by serge32 | Posted at Dec 31, 2013 | Categories: Математика

Answers

геля0000
геля0000

14:x+6=13 14:x=7 x=7/14 x=1/7 2) (490-x)-250=70 (490-x)=320 490-x=320 -x=320-490 -x=-170 x=170

Dec 31, 2013 20:18

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