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What is the LCD of the equation 6y - 2/7 =y/3

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Answer:

21

Explanation:

The denominators of 3 and 7 have no factors in common, so their least common multiple is their product: 3·7 = 21.

The LCD is 21.

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Additional comment

When the equation is multiplied by 21, it becomes ...

126y -6 = 7y . . . after multiplying by 21

119y = 6 . . . . . . . add 6-7y

y = 6/119

User Anton Savin
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