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Автор - denisfedoseev2

Как решить(6у+14):2+15=40

42к-28к+180=600

Ответ

Автор - 19tatyana74
 (6у+14):2=40-15
6у+14=25*2
6у+14=50
6у=50-14
6у=36
у=36/6
у=6
-------------------------
(6*6+14)/2+15=40
36+14)/2+15=40
40=40

42к-28к=600-180
14к=420
к=420/14
к=30
42*30-28*30+180=600
600=600

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