Question 706687
4-7(3-2r)+7=5(r-2)-9
4-21+14r+7=5r-10-9
14r-5r=-10-9-4+21-7
9r=-9
r=-9/9
r=-1 ans.
Proof:
4-7(3-2*-1)+7=5(-1-2)-9
4-7(3+2)+7=5*-3-9
4-35+7=-15-9
-24=-24