95 - ( y × 5 ) = 15 + ( y × 3 )

2 câu trả lời

95(y.5)=15+(y.3)

955y=15+3y

3y5y=1595

8y=80

y=10

Vậy y=10

#thanhmaii2008

95 - (y x 5) = 15 + (y x 3)

95y - 475 = 15y + 45

95y - 15y = 475 - 45

(95 - 15)y = 430

80y = 430

y = 430 : 80

y = 5,375