Hello.
Remember, equivalent means equal.
Let's simplify the expression.
First, let's use the Distributive Property, which states
[tex]\hookrightarrow[/tex] [tex]\mathrm{a(b+c)=ab+ac}[/tex]
Use it:
[tex]\hookrightarrow\mathrm{-4+8(7+x)}[/tex]
[tex]\hookrightarrow[/tex] [tex]\mathrm{-4+56+8x}[/tex]
[tex]\hookrightarrow\mathrm{52+8x}[/tex]
Therefore, the answer is
[tex]\mathrm{52+8x}[/tex]
I hope this helps you.
Have a nice day.
[tex]\boxed{imperturbability}[/tex]
