Unit form: 6 nines =_ nines + _ nine

Step-by-step explanation:

Unit form: 6 nines=......nines +.... nine

By this it is meant,

We can write that as

And that's true.

This is representation of distributive property.

So ,

f is the midpoint of

x = -4

step-by-step explanation:

- 20 - 4(x + 3) = 4x

=> -20 - 4x - 12 = 4x

=> - 32 -4x = 4x

=> -32 = 4x + 4x

=> - 32 = 8x

=> -32/8 = x

=> -4 = x