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Mathematics 13 Online
Tonycoolkid21:

help

Tonycoolkid21:

4x − 2 = −14

Katrin369:

Okay you need help to solve x?

Tonycoolkid21:

yes

Katrin369:

Okay, do you know the first step?

Tonycoolkid21:

yes do and undo

Katrin369:

@tonycoolkid21 wrote:
yes do and undo
So you don't and do?

Tonycoolkid21:

no do and undo

Katrin369:

@tonycoolkid21 wrote:
no do and undo
Umm okay then whats the first step?

Tonycoolkid21:

help

Katrin369:

@tonycoolkid21 wrote:
help
Okay. The first step is to add 2 to both side of the equation.

Tonycoolkid21:

show MW like a picture

Katrin369:

A what?

Tonycoolkid21:

like a picture on were you add them

carmelle:

can I try helping?

Katrin369:

You want the equation with the 2s added?

Tonycoolkid21:

k

Katrin369:

Okay

Katrin369:

4x-2+2=-14 4x-2+2=-14+2

Katrin369:

Now whats the second step?

carmelle:

This is our equation: 4x − 2 = −14 First we add 2 from both sides 4x − 2 = −14 + 2 = + 2 What are we left with when we do this?

Katrin369:

@carmelle wrote:
This is our equation: 4x − 2 = −14 First we add 2 from both sides 4x − 2 = −14 + 2 = + 2 What are we left with when we do this?
okay that is what I did there.

Luciano9:

What level of math are you in Tony

carmelle:

@katrin369 wrote:
@carmelle wrote:
This is our equation: 4x − 2 = −14 First we add 2 from both sides 4x − 2 = −14 + 2 = + 2 What are we left with when we do this?
okay that is what I did there.
I was just trying to help :/

Tonycoolkid21:

were you get 2 froM.

carmelle:

@tonycoolkid21 wrote:
were you get 2 froM.
we have to cancel out the `-2` that is in the equation so that we can get `x` by itself.

Tonycoolkid21:

k

carmelle:

what are we left with now?

carmelle:

Do you need more help?

TaeJ:

ok so 4x-2=14 basically 14-2.......find what 14-2 is........

TaeJ:

so do14-2

carmelle:

4x − 2 = −14 + 2 = + 2 So, what do you get when you do -2 + 2 = ? -14 + 2 = ?

TaeJ:

then divide the answer by 4

carmelle:

@taej wrote:
ok so 4x-2=14 basically 14-2.......find what 14-2 is........
we have to `add` both sides by 2 not subtract

Tonycoolkid21:

-14+2=-12

carmelle:

Correct, and when we do -2 + 2, we get 0, so the 2 cancels out.

carmelle:

4x = −12 Now, we have to `divide both sides by 4` 4 ÷ 4 = ? -12 ÷ 4 = ?

Tonycoolkid21:

1 -3

carmelle:

Thats correct!! x = -3

carmelle:

Great job :D

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