How do you simplify #7x+3x#?

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Answer 1 · 2018-05-29T20:38:55

#10x#

In algebra you can only add like terms.

#7x + 3x# can be written as:

#x+x+x+x+x+x+x" "+x+x+x#

As they are all terms in #x# we can simply ask how many #x#s are being added altogether.?

There are seven #x#s and another three #x#s.

They are all like terms which gives:

#7x + 3x = 10x#