Question

Dois ângulos opostos pelo vértice medem 3x-75° e x+15°. Determine o valor de x.

PRECISO DE AJUDA URGENTE!!!!​

Answer 1

$\Large\boxed{\begin{array}{l}\sf 3x-75^\circ=x+15^\circ\\\sf 3x-x=15^\circ+75^\circ\\\sf 2x=90^\circ\\\sf x=\dfrac{90^\circ}{2}\\\\\sf x=45^\circ\end{array}}$

Answer 2

$\mathsf{ 3x-75\textdegree=x+15\textdegree}$

$\mathsf{3x-x=15\textdegree+75\textdegree }$

$\mathsf{2x=90\textdegree }$

$\mathsf{x=\dfrac{90\textdegree}{2} }$

$\boxed{\boxed{ \mathsf{x=45\textdegree}} }$