What is the equivalent expression to 7x-8y+9x

1 answer:

7 0

That expression can be simplified by combining like terms.
Like terms are terms that have the same variable(s) and the same exponent(s).
The like terms are 7x and 9x.

You can combine like terms by adding the coefficients (the number in front of the exponent) together and then tacking on the variable at the end.
7x + 9x = 16x

Add 16x back to the term that can't be combined (-8y), and the simplified expression is 16x - 8y

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The two plural or possessive errors are the ones that use the wrong placement of the apostrophe and the letter s. In the instances above, we can see that there was no need for the apostrophe after the letter s in the word, Bird-watchers.

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