Respuesta:
( 3x + 7 ) · ( =5x + 13 )
Explicación paso a paso:
Hola
3x + 7 = 5x + 13
3x - 5x = 13 - 7
-2x = 6
6 : - 2
X= - 3
Comprobamos
-3 x 3 = -9
-3 x 5 = -15
3x(-9) + 7 = 5x(-15) + 13
-2 = -2
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Respuesta:
( 3x + 7 ) · ( =5x + 13 )
Explicación paso a paso:
Hola
3x + 7 = 5x + 13
3x - 5x = 13 - 7
-2x = 6
6 : - 2
X= - 3
Comprobamos
-3 x 3 = -9
-3 x 5 = -15
3x(-9) + 7 = 5x(-15) + 13
-2 = -2