Question

resolva o sistema pelo metodo da adicao : x+y=360 x-y=140 me ajudem pfvr

Answer 1

x + y = 360
x - y = 140
----------------
2x = 500
x = 500/2
x = 250

x + y = 360
250 + y = 360
y = 360 - 250
y = 110



S={ 250, 110 }