Respuesta:
5x+1 = 3x-4
1+4 = 3x-5x
5 = -2x
-(5) = -(-2x)
-5 = 2x
2x = -5
2x/2 = -5/2
x = -5/2
Comprobación :
5(-5/2)+1 = 3(-5/2)-4
-25/2+1 = -15/2-4 ; 1 = 2/2
-25/2+2/2 = -15/2-4 ; 4 = 8/2
(-25+2)/2 = -15/2-8/2
(-25+2)/2 = (-15-8)/2
-23/2 = -23/2
R// " X " Vale -5/2.
Explicación paso a paso:
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Respuesta:
5x+1 = 3x-4
1+4 = 3x-5x
5 = -2x
-(5) = -(-2x)
-5 = 2x
2x = -5
2x/2 = -5/2
x = -5/2
Comprobación :
5(-5/2)+1 = 3(-5/2)-4
-25/2+1 = -15/2-4 ; 1 = 2/2
-25/2+2/2 = -15/2-4 ; 4 = 8/2
(-25+2)/2 = -15/2-8/2
(-25+2)/2 = (-15-8)/2
-23/2 = -23/2
R// " X " Vale -5/2.
Explicación paso a paso: