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(x) 3 5 7 (y) 7 11 15 Find x, when y = 21

(x) 3 5 7 (y) 7 11 15 Find x, when y = 21
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1 vote
(x) 3 5 7
(y) 7 11 15

Find x, when y = 21

User Freney
by
7.4k points

1 Answer

5 votes

Answer:

x = 10

Explanation:

y = 2x + 1

21 = 2x + 1

21 - 1 = 2x

2x = 20

x = 10

User Stukelly
by
8.4k points
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