Solve the following equations

1)22=14-4y
22-14=-4y
8=-4y
y=-2

2)21=3-21y
21-3=-21y
18=-21y
y=-0.857

3)48= -4+12y
48+4=12y
52=12y
y=4.33333333

4)-3/5-3y/4=27
-3y/4=27+3/5
-3y= 27.6 X 4
-3y= 110.4
y= -36.8

5)3/4-5-3y/12=2/3
0.75-5-3y/12=2/3
-4.25-3y/12=2/3
(-4.25X12)-3y=(2/3)X12
-51-3y=8
-3y=59
y=-19.6666666

6)1/5 - 4y-1/10=3/20
(0.2X10) -4y-1=(3/20)X10
2-4y-1=1.5
2-4y=2.5
-4y=0.5
y=-0.125

1) 22=14-4y
8=-4y
y=-2

2007-10-21 22:13:49 補充：
2) 21=3-21y 18=-21y y=-21/183) 48= -4+12y 52=12y y=13/34) -3/5-3y/4=27 -12-15y/20=27 -12-15y=540 -15y=552 y=36.8

2007-10-22 20:17:43 補充：
4) Answer should be -36.8, not 36.8. I'm sorry about my typing mistake.5)3/4-5-3y/12=2/30.75-5-3y/12=2/3-4.25-3y/12=2/3(-4.25X12)-3y=(2/3)X12-51-3y=8-3y=59y=-19.66666666)1/5 - 4y-1/10=3/20(0.2X10) -4y-1=(3/20)X102-4y-1=1.52-4y=2.5-4y=0.5y=-0.125