how would you solve this.....

500x - 0.81 = 900x + 0.67

please help me out here... I just want to know how to solve this...

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- Jul 23rd 2012, 12:43 AM #1

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- Jul 23rd 2012, 12:46 AM #2

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## Re: sup yall Im new so please help....

follow these steps:

1. add 0.81 to both sides

2. subtract 900x from both sides

3. simplify

4. divide both sides by what you are multiplying "x" by

5. at this point, the left side should be just x, and the right side the solution

- Jul 23rd 2012, 12:50 AM #3

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- Jul 23rd 2012, 02:10 AM #4

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## Re: sup yall Im new so please help....

step 1:

500x - 0.81 + 0.81 = 900x + 0.67 + 0.81

step 2:

500x - 0.81 + 0.81 - 900x = 900x + 0.67 + 0.81 - 900x

step 3:

put the "x stuff" together, and the "non-x stuff" together:

500x - 900x - 0.81 + 0.81 = 900x - 900x + 0.67 + 0.81

now we can simply things:

-0.81 + 0.81 = 0, and 500x - 900x + 0 = 500x - 900x, so the left side becomes: 500x - 900x.

900x - 900x = 0, and 0 + 0.67 + 0.81 = 0.67 + 0.81, so the right side becomes: 0.67 + 0.81, so now we have:

500x - 900x = 0.67 + 0.81

by the distributive law: 500x - 900x = (500 - 900)x = -400x, and 0.67 + 0.81 = 1.48, so now we have:

-400x = 1.48

step 4: well, you don't really expect me to finish it ALL for you, do you?

- Jul 27th 2012, 10:35 AM #5

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## Re: sup yall Im new so please help....

This is the best solution..

500x - 0.81 = 900x + 0.67

500x - 900x = 0.81 + 0.67

-400x = 1.48

_____ _____

-400 -400

x = - 0.0037

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