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(1)/(7)d= -3
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2 votes

(1)/(7)d= -3

User Ekmal Firdaus
by
3.8k points

1 Answer

3 votes
d = -21

multiply both sides by 7
1/7d (7) = -3 (7)

reduce with greatest common factor
d = 7(-3)

change signs
d = -7(3)

solve
d=-21
User Daniel Harris
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4.1k points
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