Question

I dont understand how to remove the parentheses and simplify for the following problem
9x-(7-3x) Can someone help me ?

Answer 1

You distribute :

9x-7+3x

And then simplify..

Answer 2

Do you know how to distribute ?

Answer 3

Okay so it would be 63x+27x is that all

Answer 4

No. How did you get that ?

Answer 5

I distributed and multiplied can you help me solve it

Answer 6

Okay :)

Answer 7

Oh wait. You distributed the 9 as well ?

Answer 8

yes the 9 to the 7 and the 9 to the 3

Answer 9

I did that and thats what i came up with

Answer 10

That's wrong. Because you only have a negative before the brackets but if it was like this :

-9x(7-3x)

The yeah you MUST distribute the 9.

But your question is like this :

9x-(7-3x)

So you will only distribute the negative.

=> 9x-7+3x

( and don't forget: negative * negative = positive )

And when you simplify it all you have to do is COMBINE LIKE TERMS!!

=> 12x-7

Answer 11

Get it ?

Answer 12

So i just remove them by combine the subtraction sign in the problem

Answer 13

I have another question

Answer 14

Okay, what is it ?

Answer 15

Its just like the last one but im still a lil confused -6(3r+8)+9(7r+3)

Answer 16

What's confusing you ?

Answer 17

I keep wanting to multiply would it be 18r-48+63r-27 combine like terms then simplify

Answer 18

Yessss! That's absolutely correct :D

Answer 19

Can you simplify it ?

Answer 20

is it 45r-27 ???

Answer 21

No, combine like terms :

(18r+63r) + (-48-27 )

Now do it from here :)

Answer 22

is it 45r-27

Answer 23

no

Answer 24

(18r+63r) + (-48-27 )

Answer 25

and solve it :)

Answer 26

I dont understand still

Answer 27

You have to combine like terms right ?

18r and 63r are like terms

^ Add them

=> 81r

And -48 and -27 are like terms

^ Add them

=> -75

So, what will you get ?

81r-75

Do you get it ? :D