9x - 3(6 – 5x) = x – 2(3x + 9)

Question

anonymous · Answer

Isolate your x

anonymous · Answer

Do your brackets first though.

anonymous · Answer

how do i do that am i subtracting it or combining like terms

anonymous · Answer

Let's do it step by step.

anonymous · Answer

1rst, undo your brackets. You know how?

anonymous · Answer

3(6-5x)

3 x 6 = ?
3 x -5x = ?

anonymous · Answer

9x - 3(6 – 5x) =   x – 2(3x + 9)   
9x-18-15x=x-6x-18......like this

anonymous · Answer

right.

anonymous · Answer

Although the last one is +18

anonymous · Answer

From here, you can bring your X's on one side and the numbers on the other.

anonymous · Answer

like combine the like terms

anonymous · Answer

Yes.

anonymous · Answer

how do i get rid of the equal sign

anonymous · Answer

You don't get rid of it, you keep it.

anonymous · Answer

You want to end up with x =?

anonymous · Answer

can you write it out for im a little lost on how to show my work wen combining the terms

anonymous · Answer

so i would do 9x-15x+x

anonymous · Answer

Ok look, you had your equation:

9x-18-15x=x-6x+18

This becomes

-6x-18 = -5x +18

Next, you bring the -5x over so it becomes positive.

-x-18 = 18

Bring the -18 over

-x = 36

x=-36

anonymous · Answer

- times 9 =-18 its not postive

anonymous · Answer

-2  times 9 =-18

anonymous · Answer

It's positive. The negative is between the two sets and is not with the number itself.

anonymous · Answer

If it would have been x + - 2(3x + 9) 
or
x – -2(3x + 9) ,

then yes

anonymous · Answer

still dont see how you got 36

anonymous · Answer

-36

anonymous · Answer

I'll explain it in details then.

anonymous · Answer

i put the whole problem in on caluclator and it gave me 0 for x

anonymous · Answer

EXAMPLE: 

2x + 3 = x -2

(2x-x) +3 = (x-x) -2

x+3 = -2
x+3-3 = -2-3
x=-5

Same thing for your equation!

9x - 3(6 – 5x) = x – 2(3x + 9) 

Multiply the brackets!

3(6-5x) =

3 x 6 = 18
3 x -5x = -15x

2(3x+9)=

2 x 3x = 6x
2 x 9 = 18

Now you have your new equation!!!!!!

9x - 18-15x = x - 6x + 18

Now collect like-terms!

9x-15x-18 = x-6x +18
-6x-18 = -5x +18
(-6x+5x)-18 = (-5x+5x) +18
-x-18 = 18
-x-18+18 = 18+18
-x = 36
--x=-36
x=-36

anonymous · Answer

I hope this helped because I can't explain it any other way.

anonymous · Answer

thanks

anonymous · Answer

can you help me with another one

anonymous · Answer

Sure, open a new question up

anonymous · Answer

k

anonymous · Answer

You have to close this question first though.