They forgot to distribute the 3 over to the 1. the correct work should look like:
3(x+1)=6
3x+3=6
3x=3
x=1
13x - 21x - 7 = 63
- 8x = 70
x = - 8.75
180-147=33
180=33+4x+x
180=33+5x
147=5x
29.4=x
69429 loser haha your going to fail
First you have to find the common denominator, what does 5 and 25 go into? 25 right. So now you set it up 5/25 is 5 then 5X2 is 10. So your first fraction is 10/25. then you do this to the other side which gives you 3. So now "Just like you have written you have 13/25. Now divide, it gives you .52. if .50 is half, then .52 is close to half. so your answer is B.