Question

Assinale o valor de x, sabendo que os ângulos são complementares.

Answer 1

Resposta:

Olá bom dia!

Ângulos complementares somam 90°.

$\frac{x}{2}+15+3x-23 = 90\\\\x+30+6x-46=180\\\\7x -16 = 180\\\\7x = 180 + 16\\\\7x = 196\\\\x = \frac{196}{7} \\\\x = 28$