Question

What is the value of the expression when n=3 -2(5+n-8-3n)

Answer 1

-2n(5 + n - 8 - 3n)
-10n - 2n² + 16n + 6n²
4n² + 6n

Answer 2

Let's simplify the expression
$-2(5+n-8-3n)=-2(-3-2n)=(-2)(-3)+(-2)(-2n)=6+4n$
Substitute the value of n to the expression:
$6+4(3)=6+12=18$
Your answer is 18.