Question

Which of the following expressions are equivalent to –3.5(2 – 3n) – 2.5n?

A: –7 – 8n
B: –7 + 8n
C: –7 – 13n
D: –7 – n(10.5 – 2.5)
E: –7 + n(10.5 – 2.5)

Answer 1

use distributive law
a(b+c) = ab+ac

and then add any like terms in expression

Answer 2

Is it A

Answer 3

I mean B

Answer 4

–3.5(2 – 3n) – 2.5n
Simplify using distrubtive property

Distruibute -3.5 on what's inside the parentheses
-3.5 * 2 = -7
-3.5 * -3n = 10.5n

So now we have
-7 + 10.5n - 2.5n
combine alike terms
-7 + 8n

Answer 5

Thanks dude