RESPUESTA: 70
[tex] \frac{3x}{2} + 50 = 2x + 30 [/tex]
[tex] \frac{3x}{2} - 2x = 30 - 50[/tex]
[tex] \frac{3x - 4x}{2} = - 20[/tex]
[tex] \frac{ - x}{2} = - 20[/tex]
[tex] - x = - 20(2)[/tex]
[tex] - x = - 40[/tex]
[tex] x= 40[/tex]
Si x = 40°
[tex]2x + 30 + y = 180[/tex]
[tex]2(40) + 30 + y = 180 \\ 80 + 30 + y = 180 \\ 110 + y = 180 \\ y = 180 - 110 \\ y = 70[/tex]
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RESPUESTA: 70
[tex] \frac{3x}{2} + 50 = 2x + 30 [/tex]
[tex] \frac{3x}{2} - 2x = 30 - 50[/tex]
[tex] \frac{3x - 4x}{2} = - 20[/tex]
[tex] \frac{ - x}{2} = - 20[/tex]
[tex] - x = - 20(2)[/tex]
[tex] - x = - 40[/tex]
[tex] x= 40[/tex]
Si x = 40°
[tex]2x + 30 + y = 180[/tex]
[tex]2(40) + 30 + y = 180 \\ 80 + 30 + y = 180 \\ 110 + y = 180 \\ y = 180 - 110 \\ y = 70[/tex]