Question

3.) -8(8+4b)=20-4b what is x?

Answer 1

B = -3

Answer is provided in the image provided.

Answer 2

Answer and Step-by-step explanation:

$\Huge\boxed{B=-3}$

Step 1 : Simplify both sides of the equation :

$-8(8+4b)=20-4b$

$(-8)(8)+(-8)(4b)=20+-4b$ (By Distributing)

$-64+-32b=20+-4b$

$-32b-64=-4b+20$

Step 2 : Add $4b$ to both sides :

$-32b-64+4b=-4b+20+4b$

$-28b-64=20$

Step 3 : Add $64$ to both sides :

$-28b-64+64=20+64$

$-28b=84$

Step 4 : Divide both sides by $-28$ :

$\frac{-28b}{-28}=\frac{84}{-28}$

$b=-3$

That should be you're final answer!