Respuesta :

Answer:

-6

Step-by-step explanation:

distribute.

5x-10-9=-7+7x

get variables on the same side by +/- on both sides of the equation

5x-10-9=-7+7x

-5x. -5x

-19=-7+2x

+7 +7

-12=2x

divide to get x by itself

-12=2x

2. 2

x= -6