Respuesta :

MAHSAfn

Step-by-step explanation:

Because there is a negative sign before parentheses.

The sign( a) is negative When multiplied by the negative before the parentheses The sign becomes negative

Ver imagen MAHSAfn

Hey there!

First, let's solve this maths problem:

7a-(3+8a)

Here we should use the Distributive Property and distribute -

Wait, what? Distribute a minus? Yeah! The minus sign (in this case) is the same as -1:

7a-3-8a

Now, why did the plus sign change to the minus sign?

Because a negative times a positive is a negative.

Hope everything is clear.

Let me know if you have any queries; if you do, please comment.

#LearningDoesn'tEnd

[tex]\rule{200}{2}[/tex]

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