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numero 2 =y
x + y = 50 (1) x=50-y
(1/4)(x-y)=5 (2)
(1/4)((50-y)-y)=5
(1/4)(50-2y)=5
(50-2y)=20
-2y=20-50
-2y=-30
y=15
x+y=50
x+15=50
x=50-15
x=35
1/4(x-y)=5
1/4(x-y)=5 → 1/4(50-y-y) = 5 → 1/4(50 - 2y) = 5 → 50 - 2y = 20 → 50 - 20 = 2y → 30 = 2y → y = 15
x = 50 - y → x = 50-15 → x = 35
Rpta: Los números son 35 y 15