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dybincka [34]
3 years ago
9

WILL GIVE BRAINLIST do i do 10-x=2?​

Mathematics
1 answer:
Viktor [21]3 years ago
8 0

Answer:

x = 4

Step-by-step explanation:

DE is parallel to AC and intersects the other 2 sides. It divides those sides proportionally, that is

\frac{BD}{DA} = \frac{BE}{EC}, thus

\frac{10-x}{x} = \frac{3}{2} ( cross- multiply )

2(10 - x) = 3x ← distribute left side

20 - 2x = 3x ( subtract 3x from both sides )

20 - 5x = 0  ( subtract 20 from both sides )

- 5x = - 20 ( divide both sides by - 5 )

x = 4

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In the image provided, the red line represents 2/3x - 2 and the blue line represents -5x + 1.


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