I’m currently on working on solving linear equations, and I’m having some trouble understanding whether a minus sign is actually separating two terms, or if it is actually(adsbygoogle = window.adsbygoogle || []).push({}); part ofthe term.

Here’s something that snagged me, it’s the left member of the equation:

[tex]\displaystyle{7(2x - 3) - 4(x + 5)}[/tex]

Regarding the minus sign just before the “4”, should I think of that as “separating” the two terms, or should I think of it as actually being a part of the term, and hence the value is -4?

I keep wanting to write: [tex]\displaystyle{14x - 21 - 4x + 20}[/tex], but apparently this is false.

It should be [tex]\displaystyle{14x - 21 - 4x - 20}[/tex]

I’m just confused, because I clearly remember a rule stating that when subtracting a term, every sign has to change. For example:

[tex]\displaystyle{(7 - 3) - (2 - 1) = 7 - 3 - 2 + 1}[/tex]

Any help would be greatly appreciated!

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# Please help: simple algebra confusion.

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