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10-(12+w)=w+5

-2r-3(2r+4)= -11r

3s-9(s-2)=18s


6p+(p-4)=4p
(please show how you solved for the variables)

2006-09-07 16:58:39 · 14 answers · asked by Bre 2 in Education & Reference Homework Help

14 answers

no

2006-09-07 17:00:35 · answer #1 · answered by intoxicatedturtle 4 · 0 0

10 - 12 - w = w + 5
-2 - w = w + 5
-w - w = 5 + 2
-2w = 7
w = - 7/2 = -3.5

-2r - 6r - 12 = -11r
-2r - 6r + 11r = 12
3r = 12
r = 4

3s - 9s + 18 = 18s
3s - 9s -18s = -18
-24s = -18
s = 18/24 = .75

6p + p - 4 = 4p
6p + p - 4p = 4
3p = 4
p = 4/3 = 1 1/3

2006-09-08 00:04:47 · answer #2 · answered by Bet 2 · 0 0

-2 -w=w+5
-7=2w
w=-7/2

-2r -6r-12=-11r
3r=12
r=4

3s-9s+18=18s
24s=18
s=3/4

7p-4=4p
3p=4
p=4/3

2006-09-08 00:09:16 · answer #3 · answered by Christopher Chinson 1 · 0 0

10-(12+w)=w+5
10-12-w=w+5
-2-w=w+5 (move -2 and w to the opposite side)
-w-w=5+2
-2w=7
w= -7/2

-2r-3(2r+4)= -11r
-2r-6r-12= -11r
-8r-12=-11r
-8r+11r=12
3r=12
r=12/3=4

6p+(p-4)=4p
6p+p-4=4p
7p-4=4p
7p-4p=4
3p=4
p=4/3

**i could be wrong

2006-09-08 00:07:59 · answer #4 · answered by Ganbatteru 3 · 0 0

q1
expand equation
10-12-w=w+5
-2-5=2w
-7/2=w

q2
also expanding equation
-2r-6r-12 = -11r
-8r-12 = -11r
-8r = -11r +12
r = -1/8

q3
3s-9s+18 = 18s
-6s-18s=-18
-24s=-18
s=18/24
simplify
s=3/6

2006-09-08 00:09:13 · answer #5 · answered by (^___^) 2 · 0 0

10-(12+w)=w+5
10-12-w=w+5
10-12-5=2w
-7=2w -------->w=-7/2

-2r-3(2r+4)=-11r
-2r-6r-12=-11r
3r=12 -----------r=4

3s-9(s-2)=18s
3s-9s+18=18s
-6s+18=18s
-24s=18 ------------.s=-18/24

6p+(p-4)=4p
6p+p-4p=4
3p=4 -----------> p=4/3

give me the best answer i worked hard on them!!!!good luck

2006-09-08 00:05:26 · answer #6 · answered by mikey n 3 · 0 0

for the first problem...

it actually means: 10-1(12+w)=w-5

so, throw that -1 into it: 10(-12-w)=w-5

take away the paranthesis: 10-12-w=w-5

10-12?: -2 - w= w-5

add 5 to both sides: 3-w=w

subtract w from the left: 3 = 0 .... crap, i'm going back to 8th grade! hhahaha

sorry!

2006-09-08 00:05:48 · answer #7 · answered by MattMan 3 · 0 0

FInd out yourself how to solve. Answers:

1. w=-7/2
2. r = 4
3. s=3/4
4. p=4/3

2006-09-08 00:04:58 · answer #8 · answered by harsh_bkk 3 · 0 0

#1
10-(12+w)=w+5
10-12-w=w+5
-2-w=w+5
-2-w+w-5=w+5+w-5
2w=-7
2w/2=-7/2
w=-7/2 or -3.5

#2
-2r-3(2r+4)=-11r
-2r-6r-12=-11r
-8r-12=-11r
-8r-12+8r=-11r+8r
-12=-3r
-12/3=-3r/3
r=4

#3
3s--9(s-2)=18s
3s-9s+18=18s
-6s+18=18s
-6s+18+6s=18s+6s
24s=18
24s/24=18/24
s=3/4 or 0.75

#4
6p+(p-4)=4p
6p+p-4=4p
7p-4=4p
7p-4-4p+4=4p-4p+4
3p=4
3p/3=4/3
p=4/3 or 1 1/3 or 1.33


mark as best answer please =]

2006-09-08 00:14:20 · answer #9 · answered by >???<Chinita>???< 3 · 0 0

10-(12+w)=w+5
10-(12+w)-5=w
5-(12+w)=w
5-12-w=w
5-12=2w
-7=2w
-7/2=w

2006-09-08 00:08:54 · answer #10 · answered by Anonymous · 0 0

10-(12+w)=w+5
10-12-w=w+5
-w-w=5+12-10
-2w=7
w=(-7/2)=-3.5

-2r-3(2r+4)=-11r
-2r-6r-12=11r
-8r-11r=12
-19r=12
r=(-12/19)

6p+(p-4)=4p
6p+p-4=4p
7p-4p=4
3p=4
p=4/3

2006-09-08 00:05:52 · answer #11 · answered by maczh2002 2 · 0 0

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