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D+d+d+d=120 what is d
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2 votes
D+d+d+d=120 what is d

User Sanderbee
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2 Answers

1 vote
The answer to D should be 30.
User Keiji
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6 votes
remember you can do anything to an equation as long as you do it to both sides

assumind D=d

d+d+d+d=120
4d=120
divide both sides by 4
4d/4=120/4
d(4/4)=30
d(1)=30
d=30

d=30
User Gemse
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7.3k points
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