1) 6-2y=8-3y
3y-2y=-6+8
y=2
2)15x+3=10x-12
15x-10x=-3-12
5x=-15
x=-3
3) -5x-11=-6x-12
-5x+6x=11-12
x=-1
4) 3a+5=8a-15
3a-8a=-5-15
-5a=-20
a=-20:(-5)
a=4
1) 6-2y=8-3y
3y-2y=-6+8
y=2
2)15x+3=10x-12
15x-10x=-3-12
5x=-15
x=-3
3) -5x-11=-6x-12
-5x+6x=11-12
x=-1
4) 3a+5=8a-15
3a-8a=-5-15
-5a=-20
a=-20:(-5)
a=4