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El número es "x"
El anterior es "x-1"
Ecuación:
Hay dos maneras de interpretarlas porque el enunciado no lo deja claro:
2x -5 +3x = (x-1) -1 -------> 5x -5 = x -2 ------> 4x = 3 ------> x = 3/4
2x - (5 +3x) = (x-1) -1 -------->2x -5 -3x = x -2 ----> -3 = 2x ----> x = -1,5
Saludos.
2X - 5 + 3X = 3(X - 1) - 1
2X - 5 + 3X = 3X - 3 - 1
2X + 3X - 3X = 5 - 3 - 1
2X = 1
X = 1/2
X = 0,5.