Question

7(x -2) + 3(x + 2) = 5(x - 6) I need to really understand this..

Answer 1

i will help u

Answer 2

ready

Answer 3

Sure thing :)

Answer 4

First, distribute the numbers across your parentheses that they're attached to. This is as easy as multiplying them.

Answer 5

7(x-2) will turn into 7x - 14

7 times x is 7x
and 7 times negative 2 is negative 14

Answer 6

wait

Answer 7

first simplify the question

Answer 8

and write

Answer 9

3(x+2) equals 3x + 6

and 5(x-6) is 5x - 30

Answer 10

together it looks like this

Answer 11

So....... we have:

7x - 14 + 3x + 6 = 5x - 30

Answer 12

7x-14+3x+6=5x-30

Answer 13

now put the x's on the left side

Answer 14

Here's where it gets a little tricky.

Begin by adding numbers that don't have an x *If they're on the same side of the = sign*

Answer 15

and the normal numbers on the right

Answer 16

so it looks like this

Answer 17

7x+3x-5x=14-6-30

Answer 18

So you have 7x + 3x - 8 = 5x - 30

Answer 19

now simplify it

Answer 20

Now, do the same, but for numbers that have X values

10x - 8 = 5x -30

Answer 21

10x-5x=-30+8

Answer 22

what is is?

Answer 23

Now, choose which side you want X values to be, and which side you want non-X values to be. I like putting X on the left. So... add 8 to both sides. This will 'kill' the 8 on the left and make the -30 turn into -22

Answer 24

and you can now subtract 5x from both sides, making the 5x 'die' off, and turning your 10x into just 5x (10x-5x = 5x)

Answer 25

it would be 5x=-22

Answer 26

so the answer is x=-22/5

Answer 27

then you are left with -22/5 = x

And there you are :D

Answer 28

i was helping u

Answer 29

not the other way around

Answer 30

Are you talking to me, Anikate?

Answer 31

understand the question now

Answer 32

yes

Answer 33

Lol. I was helping ja93de on my own.

Answer 34

o

Answer 35

So, do you understand, ja93de? Both our methods work, we just came to the final answer in a different order. ^_^

Answer 36

k well

Answer 37

Medal please. :P