(250÷х+9)×60=840. 640÷(140-х)-27=53

Question

(250÷х+9)×60=840. 640÷(140-х)-27=53

Answer 1

1)250*60/x+540=840250*60/x=300300x=15000x=50Ответ:502)640/140-x=8011200-80x=64080x=10560x=132Ответ:132

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