Answer: The number is -2
Step-by-step explanation:
Let x be the number.
Then according to the question, we have the equation
[tex]12-2x=8(x+4)[/tex]
First open parenthesis on the right side by multiplying 8 inside, we get[tex]12-2x=8x+32[/tex]
Now, Subtract 32 and add 2x from both sides we get
[tex]\\\Rightarrow\ 12-32=8x+2x\\\Rightarrow-20=10x\\\Rightarrow\ x=\frac{-20}{10}\\\Rightarrow\ x=-2[/tex]
Hence the number is -2.
