Question

Find y....

if
${3}^{y} \times {3}^{2} \div {3}^{5} = 729$
quickly give me the answer​

Answer 1

1. 3^[(y+2)-5]=729
2. 3^(y-3)=729
3. now 3^(6)=729
4. then y-3=6
5. y=6+3=9

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