ANSWER
The simplified expression is
[tex]2x + 28[/tex]
EXPLANATION
The given expression is,
[tex]2(10) + 2(x - - 4)[/tex]
Let us deal with the bracket first.
The two negatives in the parenthesis will become positive.
The expression now becomes,
[tex]2(10) + 2(x + 4)[/tex]
We now expand the parenthesis to get,
[tex]20 + 2x + 8[/tex]
We group like terms to obtain,
[tex]2x + 8 + 20[/tex]
This simplifies to,
[tex]2x + 28[/tex]
