Remark
That is a lot of points. 8 would do the trick to get our attention.
There are 2 ways that you can handle this question. You could just try each one of the numbers to see which value of x gives you a solution to the problem. I think you will find it is C
21 - 7 = 14
3*2 + 8 = 6 + 8 = 14
Or you could use algebra to find it.
7x - 7 = 2x + 8 Add 7 to both sides
7x - 7 + 7 = 2x + 8 + 7
7x = 2x + 15 Subtract 2x from both sides.
7x - 2x = 2x - 2x + 15
5x = 15 Divide by 5
5x/5 = 15/5
x = 3
What you use depends on what grade you are in. Check back by leaving a comment so I can see it if you want more
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