27÷у+405÷9=48 581÷83+51÷у=24216÷*+16×18=32424у-345÷23=105

Question

27÷у+405÷9=48 581÷83+51÷у=24
216÷*+16×18=324
24у-345÷23=105

Answer 1

27:y+405:9=48
27/y + 45 = 48
27/y= 48-45=3
y = 27/3=9
581:83+51:y=24
7+51/y=24
51/y=24-7=17
y=51/17=3
216:x+16×18=324
216/х+288=324
216/х=324-288=36
х=216/36=108/18=54/9=6
24y-345:23=105.
24y-15=105
24y=105+15=120
y=120/24=5

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