I'm not certain, But i think you would set it up to look like this
10-2(x+4)
then use distributive property
10-2x+8
add like terms
10+8
18-2x
divide 18 by -2 to isolate x
-9
so I think your final answer would be -9. I'm not sure if this is correct so I'm really really sorry if this is wrong. :c
