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3x - 5y = -10 (1)
4x - 3y = 16 (2)
Despejando "y" de la ecuación (1):
-y = -(10 + 3x)/5
y = (10+3x)/5
Sustituyendo el valor de "y" que se encontró:
4x - 3y = 16
4x - 3[ (10 + 3x) /5 ] = 16
4x - 30/5 - 9x/5 = 16
4x - 9x/5 = 16 + 6
11x/5 = 22
11x = 22*5
11x = 110
x = 110/11
x = 10
Entonces, como x = 10
y = (10 + 3x)/5
y = (10 + 3*10)/5
y = (10 + 30)/5
y = 40/5
y = 8
R/ x = 10, y = 8
:)