A few days ago
Anonymous

How do you combine like terms?

Can you give me an example and explain how you done it? please and thanks!

Top 2 Answers
A few days ago
sfroggy5

Favorite Answer

you add or subtract all the terms that have the exact same variable.

examples

1) 3n + 4n = 7n

2) 5n + 8 – 2n = 3n + 8, you would subtract only the n’s and leave the 8 alone.

3) 6r + 4s + 7rs, here there is nothing to combine because no variables are exactly the same.

*when you have subtraction it is best to change it to plus the opposite, the rule for subtracting integers.

2

A few days ago
?
x + 2y – 4x – 7y + 8n +2n – 3y + 7x

= x – 4x + 7x +

2y – 7y – 3y +

8n + 2n

= 10x – 9y + 12n

0