87.0k views
5 votes
Solve the equation: -2/5 n = -30
A. n=-75
B. n=-12
C. n=12
D. n=75

User Leifericf
by
6.3k points

2 Answers

0 votes
 two negatives make a positive, so the question is basically 2/5 x 30. 30/5 is 6, so 1/5 of 30 is 6. we want 2/5 so we double 1/5 and get 12. The correct answer is n.
User Oyalhi
by
6.3k points
3 votes
Assuming your equation is: -2/5n = -30

-2/5n = -30 <- We get rid of the "/5n" by multiplying each side by 5n
-2 = -30 * 5n
-2 = -150n
-1 = -75n
75n = 1

But this doesn't match up with any of your answers, so if you wouldn't mind giving me the equation again, i'll work it out

User Alistair Knock
by
6.3k points
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