Question

AIUDA XFI
3. Calcular "x"

Answer 1

Respuesta:

A+∅+80=180

A+∅=100

(2A-180)+x+(2∅-180)=180

2A-180+x+2∅-180=180

2A+2∅+x-360=180

2(A+∅)+x=540

2(A+∅)=540-x

A+∅=540-x/2

540-x/2=100

540-x=200

340=x