Question

Encontre o valor de x:

Answer 1

$\Large\boxed{\begin{array}{l}\sf 9^x=15^x\\\sf\dfrac{9^x}{15^x}=1\\\\\sf\bigg(\dfrac{9}{15}\bigg)^x=1\\\\\sf\bigg(\dfrac{9}{15}\bigg)^x=\bigg(\dfrac{9}{15}\bigg)^0\\\\\sf x=0\\\huge\boxed{\boxed{\boxed{\boxed{\sf\red{\maltese}~\blue{alternativa~d}}}}}\end{array}}$