Solve! ( giving out more points ; ) 4c + 2c + c = 266**i'd like to see step by step material pls! **

All you have to do is add the like terms.
(They are all like terms, so just add everything)

4c + 2c + c
6c + c

= 7c

Now we know that
7c = 266

We need to isolate c in 7c, to do that we will eliminate 7.

Eliminate it by dividing 7.
7c ÷ 7 =
[property of equality - also divide 7 on the other side since you are making changes to this side]

7c ÷ 7 = 266 ÷ 7

c = 38 [final answer]

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There is no image, or it's not working.

I'm just guessing, but my answer would c. 0 to 300.