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5x - 15 + 8x = 6x - 5 + x
5x + 8x - 15 = 6x + x - 5
13x - 15 = 7x - 5
13x - 7x = - 5 + 15
6x = 10
x = 10/6--------sacamos la mitad
x = 5/3
Solución :
x = 5/3
6x=10
x=10/6
x=5/3