Respuesta:
45
Explicación paso a paso:
(x-5)=(25-x)
2x=30
x=15
(y+10)+(y+20)=90
2y+30=90
2y=60
y=30
x+y= 45
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Respuesta:
45
Explicación paso a paso:
(x-5)=(25-x)
2x=30
x=15
(y+10)+(y+20)=90
2y+30=90
2y=60
y=30
x+y= 45