Respuesta :

Answer:

x= -21

Step-by-step explanation:

-10x - 135 = 117 + 2x​

-135 =  117+12x

-252 = 12x

-21 = x

x = -21

Answer:

x= -21

Step-by-step explanation:

-10x - 135 = 117 + 2x

+10 x = +10x

------------------

-135 = 117 + 12x

-117 -117

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-252 = 12x

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12. 12

x = -21