Question

calcule o valor de x em cada caso.​(parte 2)

Answer 1

f) 2x+50°+70°=180°

2x+120°=180°

2x=180°-120°

2x=60°

x=60°/2

x=30°

g) 80°+60°+x-30°=180°

x+110°=180°

x=180°-110°

x=70°

h)4x+3x+2x=180°

9x=180°

x=180°/9

x=20°

i) x+x+110°=180°

2x=180°-110°

2x=70°

x=70°/2

x=35°

j) 40°+80°+x-10°=180°

x+110°=180°

x=180°-110°

x=70°