2 years ago

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

Mathematics

1 answer:

solniwko [45]2 years ago

3 0

Answer:

x = 10

Step-by-step explanation:

y = 2x + 1

21 = 2x + 1

21 - 1 = 2x

2x = 20

x = 10

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