In Δ𝐴𝐡𝐢, 𝐴𝐡̅̅̅̅ 𝑖𝑠 π‘π‘œπ‘›π‘”π‘Ÿπ‘’π‘’π‘›π‘‘ π‘‘π‘œ 𝐡𝐢̅̅̅̅. π‘‡β„Žπ‘’ π‘π‘’π‘Ÿπ‘–π‘šπ‘’π‘‘π‘’π‘Ÿ π‘œπ‘“ Δ𝐴𝐡𝐢 𝑖𝑠 47 π‘π‘’π‘›π‘‘π‘–π‘šπ‘’π‘›π‘‘π‘’π‘Ÿπ‘ . How many centimeters long is 𝐴𝐢̅̅̅̅?

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replace the 4x-9 with 5x-9
ALSO ITS 3x NOT 2x