Question

-3r +9 = -4r +5
what's r?​

Answer 1

I got r=-1

Explanation:

first I had 3 R over the = and into -4r

second I subtracted the 5 over the = and onto the 9

now you have: 4=-1r

divide the -1 over to have a positive R

and a -4

Answer 2

-4

Explanation:

-3r+9=-4r+5

-3r+4r=5-9

r=-4