4(r-7)+2>5(r+3)-28

Question

I tend to make things too difficult.. can someone please check my answer?

{r l r > 31/4}

Answer 1

4(r-7)+2>5(r+3)-28
4r - 28 > 5r + 15 - 28
-r > 15
r < -15

Answer 2

I think Reiny lost the +2 on the left...

4r-28+2>5r+15-28
-r>13
r<-13

Answer 3

I missed the +2
Let's try again

4(r-7)+2>5(r+3)-28
4r - 28 + 2 > 5r + 15 - 28
-r > 15 - 2
r < -13

Answer 4

thank you so much... I tend to make things too difficult I don;t know why I do this.. and the extra number and letters throw me off... thank you I will use this tip for further references... appreciate it so much