Respuesta :
I was just learning this!
So basically since the variable is the same (x) all you want to do is add 3 with 7 to get 10, then add the x. So your answer would be
3x+7x = 10x
So basically since the variable is the same (x) all you want to do is add 3 with 7 to get 10, then add the x. So your answer would be
3x+7x = 10x
10x because since they both have an x you are able to add them together. hope this helped
