How do you combine like terms in #2k + 8+ k + 1#?

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Answer 1 · 2017-04-17T04:09:46

Add all the like terms (unknowns and numbers) together.

#2k+8+k+1 = 3k+9#

We have: #2k+8+k+1#

Where the #k# on its own is the same as #1k#.

We can re-arrange the parts of the expression:

#2k+1k+8+1# then add like terms:

#3k+8+1# where we added all the unknown values #k# together.

#3k+9# where we added all the numbers values together.

Then: #2k+8+k+1 = 3k+9#