karinamag423 karinamag423

18-12-2020
Mathematics

contestada

solve for x please and explain!

solve for x please and explain class=

Respuesta :

sqdancefan sqdancefan

19-12-2020

9514 1404 393

Answer:

x = 6

Step-by-step explanation:

The parallel lines divide the side lengths proportionally.

21/14 = (x+3)/x

1.5 = 1 +3/x . . . . perform the division

0.5 = 3/x . . . . . .subtract 1

x = 6 . . . . . . . . . multiply by 2x

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