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Mathematics 8 Online
OpenStudy (anonymous):

Help!!! 3=7/9x-18

OpenStudy (anonymous):

So first you get rid of the 18 by doing 7/9x - 18 +18 = 3 + 18

OpenStudy (anonymous):

That gets you 7/9x = 21

OpenStudy (anonymous):

Do you know what's next?

OpenStudy (anonymous):

Do you multiply by nine & divide by 7

OpenStudy (anonymous):

You've got the right concept, but you actually multiply 7 by 9.

OpenStudy (anonymous):

Its the first one

OpenStudy (anonymous):

Sorry, divide 7 by 9

OpenStudy (anonymous):

Not multiply

OpenStudy (anonymous):

I'm confused

OpenStudy (anonymous):

Ok. After you get rid of the 18 by adding it to each side you get this equation: 7/9x = 21

OpenStudy (anonymous):

Next, you will divide 9 by 7

OpenStudy (anonymous):

Do you know what the equals?

OpenStudy (anonymous):

After you divide 9 by 7 it equals 1.3 Now you have the equation 1.3x = 21. Next you will do 1.3x divided by 1.3 = 21 divided by 1.3

OpenStudy (anonymous):

Now you have the answer which is x = 16.15

OpenStudy (anonymous):

I hope it helped

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