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I really need help understanding how to do things like 20-4x-9.50 

Please help.

Thanks.

 Sep 7, 2018
 #1
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When you do equations like this, reorganize the numbers because you are subtracting. Reorganise them like this: 20-9.50-4x.

It only works with equations like this: 20-17-2 or 19-6x-4-3 because of the communitive properties. Btw, it factors out like this: 11.50-4x.

 Sep 7, 2018

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