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If I wanted to combine like terms for this problem, a couple of things we need to look at
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where we're trying to combine like terms. We need to notice that these x values, we don't know what the x value is.
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x could be equal 1, x could be equal 2, x could be equal 0 or a negative number. We don't know the value of x.
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However, what we can do is we can combine them together. So what I can do is if I have 1 x plus 5 x's, I can combine that to give me 6 x's.
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Because that still is still in me the exact same thing. And then I have minus 2 x. So minus 2 x plus 3 minus 4.
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Well, I can know I can combine numbers together and I can combine these two. So 6 x minus 2 x gives me 4 x plus 3 minus 4 is a negative 1.
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The one real quick little reason why I show you, why x plus x equals 2 x. Let's say that x equals 1. Therefore, if you want, plus 1 equals 2 times 1.
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Is that true? Yes, it is. The following teachers are teaching guidance. Shelling birth, wax the term.
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2 x 2 is 4. So you can see that it doesn't matter what value I plug in. I can't add my coefficients or subtract as long as they're as they're like terms.
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So whenever you have x's or if they're x squares or whatever variable you're using, you can simply combine those variables together. So here I end up getting 4 x plus a negative 1.