Question

Find the length of X

Answer 1

Below

Explanation:

21 is to 27 as x-3 is to x-1

21/27 = x-3/x-1 cross multipliy , solve for x = 10

Answer 2

• x = 10

Explanation:

x-3/21 = x-1/27

27(x-3) = 21(x-1)

27x-81 = 21x-21

27x-21x = -21+8

6x = 60

x = 60/6

x = 10

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Hope this helps! :)