Solve. 1. 1/2(3x+2)=13 2. -2(6-5a)= -8 3.-8(3p-2)=8 4. 5(7+n)=36 5. 8y-(3-6y)= -1 2/3 6. 2(3b+4)-(b-5)=12
2006-11-30 07:34:59 · 7 answers · asked by steelerxfan 2 in Science & Mathematics ➔ Mathematics
1/2(3x+2)=13
(3x+2) = 26
3x= 24
x= 8
-2(6-5a)= -8
6-5a= -6
-5a=-12
a= 12/5
-8(3p-2)=8
3p-2=-1
3p=1
p=1/3
5(7+n)=36
7+n=36/5
n= 36/5 - 7
n= 1/5
8y-(3-6y)= -1 2/3
8y+3+6y= -1 2/3
14y= -5/3 - 9/3
14 y = -14/3
y= -1/3
2(3b+4)-(b-5)=12
6b+8-b+5=12
5b=12-13
b=-1/5
2006-11-30 07:43:49 · answer #1 · answered by Anonymous · 0⤊ 0⤋
1. 1/2(3x+2)=13
multiplying by 2
3x+2=26
adding-2
3x=24
dividing by 3
x=8
2. -2(6-5a)= -8
-12+10a=-8
adding12
10a=4
dividing by 10
a=0.4 or 2/5
3.-8(3p-2)=8
-24p+16=8
adding -16
-24p=-8
dividing by -24
p=1/3
4. 5(7+n)=36
35+5n=36
adding -35
5n=1
dividing by 5n=1/5
5. 8y-(3-6y)= -1 2/3
8y-3+6y=-5/3
14y-3=-5/3
multiplying by 3
42y-9=-5
42y=4
dividing by 42
y=4/42=2/21
6. 2(3b+4)-(b-5)=12
6b+8-b+5=12
5b+13=12
adding -13
5b=-1
dividing by 5
b=-1/5
2006-11-30 15:45:19 · answer #2 · answered by raj 7 · 0⤊ 0⤋
Honey, if you need help with your homework find a tutor but don't ask people to do your homework for you ;) This way you'll never learn.
2006-11-30 15:56:01 · answer #3 · answered by Maria M 2 · 1⤊ 0⤋
if you don't do your own homework,you will never learn.Looking forward to working at McDonald's?
2006-11-30 15:44:04 · answer #4 · answered by Anonymous · 0⤊ 1⤋
i am just a stupid as you are. and you should start to your own home work for a change
2006-11-30 15:43:15 · answer #5 · answered by Zoe 3 · 0⤊ 1⤋
No. Do your own homework
2006-11-30 15:37:12 · answer #6 · answered by arrizona 3 · 1⤊ 1⤋
gopal is right!!
2006-11-30 15:53:20 · answer #7 · answered by smitty4626 3 · 0⤊ 0⤋