Respuesta:
Hola
Explicación paso a paso:
3×4-5×6 = 2x+7x
2x+7x = 3×4-5×6
9x= 12-30
9x= -18
[tex]x = \frac{ - 18}{9} [/tex]
x= -2
Comprobación
12 - 30 = 2 (-2) + 7 (-2)
-18 = (-4) + (-14)
-18 = -4 - 14
-18 = -18
Saludos
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Verified answer
Respuesta:
Hola
Explicación paso a paso:
3×4-5×6 = 2x+7x
2x+7x = 3×4-5×6
9x= 12-30
9x= -18
[tex]x = \frac{ - 18}{9} [/tex]
x= -2
Comprobación
3×4-5×6 = 2x+7x
12 - 30 = 2 (-2) + 7 (-2)
-18 = (-4) + (-14)
-18 = -4 - 14
-18 = -18
Saludos