SOLUTION: I having a little difficulty in the following problems. I appreciate your help! Solve the unknown variable: 1. 4(-1)(1-y)+8=0 2. 1-2(3-4)+y=-2y+8(1-1) 3. y/8=4+(y-2)/24

Algebra ->  Equations -> SOLUTION: I having a little difficulty in the following problems. I appreciate your help! Solve the unknown variable: 1. 4(-1)(1-y)+8=0 2. 1-2(3-4)+y=-2y+8(1-1) 3. y/8=4+(y-2)/24       Log On


   

Question 23220: I having a little difficulty in the following problems. I appreciate your help!
Solve the unknown variable:
1. 4(-1)(1-y)+8=0
2. 1-2(3-4)+y=-2y+8(1-1)
3. y/8=4+(y-2)/24
Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
1. 4(-1)(1-y)+8=0
-4(1-y) + 8 = 0
-4 + 4y + 8 = 0
4y + 4 = 0
4y = -4
y = -1

2. 1-2(3-4)+y=-2y+8(1-1)
Do parentheses first!
1-2(-1) + y = -2y + 8(0)
1+2 + y = -2y
3 + y -y = -2y -y
3 = -3y
Divide by -3:
y=-1

3. y%2F8=4%2B%28y-2%29%2F24
Multiply both sides by the LCD which is 24:
24%2A+%28y%2F8%29=24%2A+4%2B+24%2A%28%28y-2%29%2F24%29
3y+=+96%2B+y+-2
3y+-y+=+94+%2By+-y
2y+=+94
y=47

R^2 at SCC