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Mathematics
OpenStudy (anonymous):

Can i ask it on here?

OpenStudy (anonymous):

-5x-22=0 x=4.4 is that right

OpenStudy (anonymous):

@Luigi0210

OpenStudy (anonymous):

You there?

OpenStudy (luigi0210):

Check your adding/subtracting

OpenStudy (anonymous):

that's correct

OpenStudy (anonymous):

can u show me how then please and can u respond fast

OpenStudy (luigi0210):

So 5+7=22?

OpenStudy (anonymous):

no sorry its 15 my bad

OpenStudy (anonymous):

not 5

OpenStudy (luigi0210):

Then yea, your answer is correct.

OpenStudy (anonymous):

okay what about this one 2x+3-5x-7=17 7x-4+17 7x=21 x=3

OpenStudy (luigi0210):

Check your math

OpenStudy (anonymous):

-3x-4=17

OpenStudy (luigi0210):

There you go

OpenStudy (anonymous):

okay how do I do this one 4-3(x+4)=7

OpenStudy (luigi0210):

Distribute the 3

OpenStudy (anonymous):

okay so 4-3x+12=7

OpenStudy (luigi0210):

Distribute that -3 to +4, so -12

OpenStudy (anonymous):

oh yeah. okay so next is... 3x-16=12

OpenStudy (luigi0210):

That's a +4 at the beginning so it's (4-12)

OpenStudy (anonymous):

-3x-8=12 -3x=20

OpenStudy (anonymous):

you there @Luigi0210

OpenStudy (luigi0210):

Yes that's right

OpenStudy (anonymous):

x= -6.6

OpenStudy (luigi0210):

In decimal yest

OpenStudy (luigi0210):

*yes

OpenStudy (anonymous):

okay how would I solve this inequality 5-2/3x > -7

OpenStudy (luigi0210):

Get x by itself

OpenStudy (anonymous):

how do I do that

OpenStudy (luigi0210):

The same way as if it was an equal sign

OpenStudy (anonymous):

So is it -2/3 > -2

OpenStudy (luigi0210):

subtract 5 not add

OpenStudy (anonymous):

--2/3 > -12

OpenStudy (luigi0210):

Now multiply by the negative reciprocal.

OpenStudy (anonymous):

24/3

OpenStudy (luigi0210):

Since it's negative you also flip the sign around

OpenStudy (anonymous):

so -24/3

OpenStudy (luigi0210):

No, the inequality sign not the number

OpenStudy (anonymous):

so the answer is < 24/3

OpenStudy (luigi0210):

Yup, and don't forget your x on the left

OpenStudy (anonymous):

okay is that graphable

OpenStudy (luigi0210):

On certain devices it is, and by hand yes

OpenStudy (anonymous):

okay do I look for the points 24 and 3 or

OpenStudy (luigi0210):

On a coordinate plane or number line?

OpenStudy (anonymous):

number line

OpenStudy (luigi0210):

Find the point 8, since (24/3)=8 And draw a line going to the right

OpenStudy (anonymous):

okay im working on this other problem: -9x - 4 > -6x + 20 -15x^2-4>+20 is that right so far?

OpenStudy (luigi0210):

I'm not answering any more problems unless it's on a new post

OpenStudy (anonymous):

Ok

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