Ok, I have a question! please help

So there's an expression: 4y- (5+2y)

In the example they said they used distributive property to change it into 4y-5-2y

Where did the addition sign go?

Question

Ok, I have a question! please help


So there's an expression: 4y- (5+2y) 

In the example they said they used distributive property to change it into 4y-5-2y

Where did the addition sign go?

anonymous · Answer

@pooja195

pooja195 · Answer

To put things in perspective. This is what the equation really means.  
$$\huge~\rm~4y+−1(5+2y) $$

pooja195 · Answer

When you add a negative to  a positive it becomes a negative

pooja195 · Answer

*multiply a negative by a positive

anonymous · Answer

Oh, so that goes for every expression when it comes to subtraction?

pooja195 · Answer

Yes
When you distribute the negative:
$$\huge~\rm~\bf~4y(−1)(5)−1(2y)  $$
$$\huge~\rm~4y−5−2y$$
the +sign goes away

anonymous · Answer

Ok, thank you!

pooja195 · Answer

yw ^.^