Question

determine o valor de x ​

Answer 1

Resposta:

a)

$\sf 2x + 5^\circ = \dfrac{130^\circ}{2}$

$\sf 2x + 5^\circ = 65^\circ \\2x = 65^\circ - 5^\circ\\2x = 60^\circ \\\\x = \dfrac{60^\circ}{2} \\\\x= 30^\circ$

b)

$\sf 2x = \dfrac{110^\circ}{2} \\\\2x= 55^\circ\\\\x = \dfrac{55^\circ}{2} \\\\x = 27^\circ\; 30'$

Explicação passo-a-passo: