Question

Can someone explain this im trying to get it but I can’t

Answer 1

Answer:

Explanation:
2x=x+9
subtract the x from both sides
(2x - 1x) (1x-1x)
1x 1-1= 0 so x cancels out

1x=9

divide both sides by 1x

(1x/1x) (9/1x)

1/1 cancels out so that becomes x by its self

9/1 = 9

x=9

Answer 2

2x-x+9
First, you would group your like terms together by circling them.
(2x)(-x)+9
Pretend the parentheses are circles.
Your -x will act as -1x because if you ever see a +x or -x there is always an invisible 1 there.
Next you would do like you would normally do to subtract something except you just have x right there. 2-1 is 1. So 1x.
Lastly, you put 9 and 1x together, so therefore your answer will be 1x+9, or x+9. I tried my best to explain this and I really hope it helped.