1 Answer

Aldy · Answer 1 · 2024-10-08T20:10:47+0000

Step-by-step explanation

$\triangle ADB \cong \triangle CDB$ because of the AAS theorem.

Using CPCTC, we can then conclude that AD = DC

So,

AD = DC

3y+6 = 5y-18

3y-5y = -18-6

-2y = -24

y = -24/(-2)

y = 12

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