#### dixiedarlin

##### New member

- Joined
- Mar 30, 2006

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- 4

Y=3.2 - 0.2Y I need to solve this equation and show my work.

the answer I came up with was3.0

- Thread starter dixiedarlin
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- Joined
- Mar 30, 2006

- Messages
- 4

Y=3.2 - 0.2Y I need to solve this equation and show my work.

the answer I came up with was3.0

- Joined
- Feb 4, 2004

- Messages
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The answer to any "solving" problem may be checked by plugging it back into the original exercise:dixiedarlin said:Y=3.2 - 0.2Y...the answer I came up with was3.0

. . . . .y = 3.2 - 0.2y

. . . . .[3] ?=? 3.2 - 0.2[3]

. . . . .3 ?=? 3.2 - 0.6

. . . . .3 ?=? 2.6

Since 3 does not equal 2.6, your solution is invalid. However, since you did not show your work, I'm afraid we cannot help you find your error.

If you wish to add to your original post, please

Thank you.

Eliz.

Multiply your equation by 10:dixiedarlin said:

Y=3.2 - 0.2Y I need to solve this equation and show my work.

the answer I came up with was3.0

10Y = 32 - 2Y : gets rid of decimal points; ain't that nice :wink:

Divide by 2:

5Y = 16 - Y : wow; how cute! Now can you finish that ?