Question

r - 7 > 9 - r

Answer 1

Create an equation with this, in this case the equation is r-7 = 9-r now can you find the value of r ?

Answer 2

r - 7 - 9 > - r
-7 - 9 > -r - r
-16 > -2r
divide both sides by -2 , the sign will change
-16/-2 < -2r/2
8 < r
r > 8

Answer 3

@comeAtME hope u understood