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2/5d + -3/10=9/10 Please help:( need this Asapp!!
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2 votes
2/5d + -3/10=9/10
Please help:( need this Asapp!!

User Jaslene
by
3.9k points

1 Answer

2 votes

Answer:

d = 3

Explanation:


(2)/(5) d -
(3)/(10) =
(9)/(10) [ note + - = - ]

multiply through by 10 ( the LCM of 5 and 10 ) to clear the fractions

4d - 3 = 9 ( add 3 to both sides )

4d = 12 ( divide both sides by 4 )

d = 3

User Shin Kim
by
3.4k points
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