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Korvikt [17]
2 years ago
9

Solve for d. 2d+3=7d+18

Mathematics
2 answers:
Vladimir [108]2 years ago
6 0
Answer: -3.

Explanation:
2(-3)+3=7(-3)+18
-6+3=-21+18
-3=-3
algol [13]2 years ago
5 0

Answer: d = -3

Step-by-step explanation:

2d+3=7d+18

-5d=15

d=-3

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3 years ago
Find an explicit formula for the geometric sequence -1,-7,-49,-343,.... Note : the first term should be d(1) . d(n) =
n200080 [17]

Answer:

<h3>dn = -7^n-1</h3>

Step-by-step explanation:

Given the sequence -1,-7,-49,-343,....

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