Respuesta:
X= 19
Explicación paso a paso:
x+3x-10=9+x+2x
4x -10 = 9 + 3x
4x-3x = 9 + 10
x= 19
COMPROBACIÓN
(19)+3(19)-10= 9 + (19)+2(19)
19 + 57 -10 = 9 + 19 + 38
19 + 47 = 28 + 38
66 = 66
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Respuesta:
X= 19
Explicación paso a paso:
x+3x-10=9+x+2x
4x -10 = 9 + 3x
4x-3x = 9 + 10
x= 19
COMPROBACIÓN
(19)+3(19)-10= 9 + (19)+2(19)
19 + 57 -10 = 9 + 19 + 38
19 + 47 = 28 + 38
66 = 66