math

math

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stoopid head
math 2017-03-28 02:44:17 Post No. 287278
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math stoopid head 2017-03-28 02:44:17 Post No. 287278 [Report]

How does 2x-(12-2x)=8 turn into 4x-12=8?

Anonymous 2017-03-28 02:45:37 Post No.287279
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Anonymous 2017-03-28 02:45:37 Post No.287279 [Report]

>>287278
Distribute the negative:
2x - 12 + 2x = 8
Combine like terms:
4x - 12 = 8

stoopid head 2017-03-28 05:00:52 Post No.287314
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stoopid head 2017-03-28 05:00:52 Post No.287314 [Report]

new question: hows does 2x-y=4 turn into y=2x-4?

Anonymous 2017-03-28 05:35:23 Post No.287321
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Anonymous 2017-03-28 05:35:23 Post No.287321 [Report]

>>287314
Add the y over:
2x = 4 + y
Subtract the 4 over:
2x - 4 = y
y = 2x - 4

Anonymous 2017-03-28 06:32:32 Post No.287340
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Anonymous 2017-03-28 06:32:32 Post No.287340 [Report]

Unless you're not even in high school yet, you should be able to do problems like these intuitively. Seek a tutor.

stoopid head 2017-03-28 07:05:28 Post No.287351
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stoopid head 2017-03-28 07:05:28 Post No.287351 [Report]

i agree, what is the name of this topic so that i can revise it properly

Anonymous 2017-03-28 07:07:36 Post No.287353
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Anonymous 2017-03-28 07:07:36 Post No.287353 [Report]

>>287351
Pre-Algrebra.

Anonymous 2017-03-28 08:07:44 Post No.287362
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Anonymous 2017-03-28 08:07:44 Post No.287362 [Report]

you can't possibly be 18+