Question

solving with variables on both sides:
8r = -4r-12
2y = 2+4y
3y+2y = 3y+6
4k-6k = 6-k

Answer 1

1) 8r=-4r-12
8r+4r=-12
12r=-12
r=-12/12 = -1
r=-1

2)2y=2+4y
2y-4y=2
-2y=2
y=-1

3)3y+2y = 3y+6
5y-3y=6
2y=6
y=6/2=3
y=3

4)4k-6k = 6-k
-2k=6-k
-6=-k+2k
-6=k