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a-b= -35
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2a=100
a=50
b=85
Espero que te sirva Saludoos :D
a + b = 135 (1)
a - b = - 35 (2) Utilizas metodo de reducción (Sumamos)
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2a = 100
a = 100/2
a = 50
Reemplazas a = 50 en (1)
a + b = 135
50 + b = 135
b = 135 - 50
b = 85
Respuesta.
a = 50
b = 85