Question

??determine o valor de x​

Answer 1

Resposta:

Explicação passo a passo:

a)

$5x+10 +4x-10=180$

$5x+4x +10-10=180$

$9x=180$

$x=180/9$

$x=20$°

b)

$DOH = 5x+10$

$DOH= 5.(20)+10$

$DOH = 100+10$

$DOH = 110$°

c)

$HOE = 4x-10$

$HOE= 4.(20)-10$

$HOE = 80-10$

$HOE=70$°