Respuesta:
b.15°
Explicación paso a paso:
5°-3x+90°+x+35°=180°
5°-90°+35°+4x=180°
120°+4x=180°
4x=180°-120°
4x=60°
x=[tex]\frac{60}{4}[/tex]
x=15°
comprobamos
5°-3(15°)+90°+(15°)+35°=180°
5°-45°+90°+50°=180°
40°+90°+50°=180°
180°=180°
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Respuesta:
b.15°
Explicación paso a paso:
5°-3x+90°+x+35°=180°
5°-90°+35°+4x=180°
120°+4x=180°
4x=180°-120°
4x=60°
x=[tex]\frac{60}{4}[/tex]
x=15°
comprobamos
5°-3(15°)+90°+(15°)+35°=180°
5°-45°+90°+50°=180°
40°+90°+50°=180°
180°=180°