1) 8n+23-6n+23=4 find value of h
2)3=7(h+6)+h
3)-3=2(x+5)+x
2006-10-05 00:03:37 · 12 answers · asked by Anonymous in Education & Reference ➔ Homework Help
well it's not that difficult..
1)8n+23-6n+23=4
8n-6n=4-23-23
2n=-42
n=-42/2 so n=-21
2)3=7(h+6)+h
3=7h+42+h
3-42=7h+h
-39=8h
h=-39/8 so h=-4.875
3)-3=2(x+5)+x
-3=2x+10+x
-3-10=2x+x
-13=3x
x=-13/3 so x=-4.333...
see??=)
2006-10-05 01:45:45 · answer #1 · answered by Jo-anne 3 · 0⤊ 0⤋
these could be wrong... i haven't done maths in a while... but i used to be good..lol
1) 8n+23-6n+23=4
2n= -42
n = - 42/2 = -21
2) 3= 7(h+6)+h
3 = 7h + 42 + h
8h = -39
h= - 39/8
3) 0= 2(x+5)+x +3
0=2x+10+x+3
0=3x+13
3x= - 13
x= - 13/3
2006-10-05 00:10:12 · answer #2 · answered by Anonymous · 0⤊ 0⤋
1) Simplified algebra: n=2.......
8n+23-6n+23=4
or 8n-6n=-42
or 2n=-42
Thus n=-42/2 =-21
2) h= -4.875
3=7(h+6)+h
or 3=7h +42+h
or 3=8h + 42
or 8h=3-42
or h=(-39)/8 = -4.875
3) x= (-13)/3 = -4.33
Similar manner as last answer
2006-10-05 00:10:19 · answer #3 · answered by harsh 1 · 0⤊ 0⤋
They are all the same idea
1. clear the ( )
as in 2) 3=7h + 42 +h
2. combine like terms
3 = 8h + 42
3. move terms with unknown to one side of "=" sign and other terms to opp. side 8h = -39
4. divide both sides by 8 in this case h = -39/8 (I'm surprised the number is a whole one but ....)
be careful of the sign here had it been -8h = .. answer would be -39/-8
2006-10-05 00:15:47 · answer #4 · answered by madjer21755 5 · 1⤊ 0⤋
Ask to have a tutor. They can spend time answering individual questions. It worked for my son!
2006-10-05 00:07:07 · answer #5 · answered by Anonymous · 0⤊ 0⤋
you have to find what is the value of H.
Did your teacher give it?
or example:
(3x + 6y) + (6x + 2y) = 9x 8y
if the question is like that then you don't have to find the value of H.
2006-10-05 00:17:56 · answer #6 · answered by aYuHiRi 2 · 0⤊ 0⤋
is going to show that as mum and dad we could be carefull what we are saying around our young babies, and could be putting them a sturdy occasion!! youngster replace into in basic terms repeating his fathers words.
2016-12-08 08:48:15 · answer #7 · answered by ? 4 · 0⤊ 0⤋
1)
8n-6n+23+23=4
2n+46=4
2n=4-46
2n=-42
n=-21
2)
3=7h+42+h
3-42=8h
-39=8h
h=-39/8
3)
-3=2x+10+x
-3=3x+10
-3-10=3x
-13=3x
x=-13/3
2006-10-05 00:12:23 · answer #8 · answered by iyiogrenci 6 · 0⤊ 0⤋
Wow, those problems are amazingly simple. Study more.
2006-10-05 00:06:50 · answer #9 · answered by Anonymous · 0⤊ 0⤋
1)8n+23-6n+23=4
2n+46=4
2n=4-46
2n=-42
n=-42/2
n=-21
2)3=7(h+6)+h
3=7h+42+h
3-42=8h
8h=3-42
8h=39
h=39/8
3)-3=2(x+5)+x
-3=2x+10+x
-3=3x+10
-3-10=3x
3x=-13
x=-13/3
2006-10-05 00:24:01 · answer #10 · answered by hmmm 3 · 0⤊ 0⤋