x + 260 = 300
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Chuột điếc là chuột hư tai , hư tai là hai tư . Vậy đàn chuột có 24 con
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y x 2 + y x 4 + y x 2 = 120
y x ( 2 + 4 + 2 ) = 120
y x 8 = 120
y = 120 : 8
y = 15
y x 2 + y x 4 + y x 2 = 120
y x ( 2 + 4 + 2 ) = 120
y x 10 = 120
y = 120 : 10
y = 12
Le anh tu
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y x 2 + y x 4 + y x 2 = 120
y x ( 2 + 4 + 2 ) = 120
y x 10 = 120
y = 120 : 10
y = 12
cong chua nu cuoi
y x 2 + y x 4 + y x 2 = 120
y x ( 2 + 4 + 2 ) = 120
y x 8 = 120
y = 120 : 8
y = 15
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y x 2 + y x 4 + y x 2 = 120
y x ( 2 + 4 + 2 ) = 120
y x 10 = 120
y = 120 : 10
y = 12
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x + 300 = 700 - 200
x + 300 = 500
x = 500 - 300
x = 200
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400 + 400 - 500
= 400 x 2 - 500
= 800 - 500
= 300
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200 + 200 + 200 - 300
= 200 x 3 - 300
= 600 - 300
= 300
x+260=300
x=300-260
x=40
k nhe
x + 260 = 300
x = 300 - 260
x = 40
k cho tớ nha