A- h = 24
B- h = 4
C- h = - 4
D- h = -4/7
2007-02-05 02:48:53 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Combine like terms:
3h+34=22
Subtract 34 from both sides:
3h=-12
Divide 3 from both sides:
h=-4
The answer is c.
2007-02-05 09:44:02 · answer #1 · answered by Anonymous · 4⤊ 0⤋
- 9h - 6 + 12h + 40 = 22
3h + 34 = 22
3h + 34 - 34 = 22 - 34
3h = - 12
3h/3 = - 12/3
h = - 4
The answer is h = - 4
Insert the x value into the equation
- - - - - - - - - - - - - - - - - - - - -- - -
- 9h - 6 + 12h + 40 = 22
- 9(- 4) - 6 + 12(- 4) + 40 = 22
- (- 36) - 6 + (- 48) + 40 = 22
36 - 6 - 48 + 40 = 22
30 - 48 + 40 = 22
- 18 + 40 = 22
22 = 22
- - - - - - - - - - - - - -s-
2007-02-05 11:10:42 · answer #2 · answered by SAMUEL D 7 · 2⤊ 0⤋
when you have multiple choice and you are not required to show your work, you can simply plug in each value to see which one makes it true! This saves time on standardized tests!!! if you do need to show work though, the others have shown you (and explained to you) how you would go about solving it.
ex: -9( ) -6 + 12 ( ) + 40 = 22
-9(4) - 6 + 12(4) + 40 = 22
-36 -6 + 48 + 40 =22
-42 + 88 = 22
this is not true, so 4 is not the solution...try another...start with the easier ones and go from there...but, if for some reason, none of the answers work, you know you have done something wrong, because one of them has to be correct!
-9( ) -6 + 12 ( ) + 40 = 22
-9(-4) - 6 + 12(-4) + 40 = 22
36 -6 -48 + 40 =22
22=22
so -4 is the answed...C
2007-02-05 11:04:14 · answer #3 · answered by k t 4 · 2⤊ 0⤋
Move non-h terms to right of equals sign:
-9h + 12h = 22 + 6 - 40
Combine like terms:
3h = -12
Isolate the h (divide by 3):
h = -4
2007-02-05 11:03:31 · answer #4 · answered by C D 3 · 2⤊ 0⤋
-9h+12h-6+40=22
3h+34=22 ||-34 both sides
3h=-12 ||divide by 3
h=-4
were A,B,C and D choises, or did you want to know what they are
A-(-4)=24 <=> A+4=24 <=> A=20
B-(-4)=4 <=> B=0
C-(-4)=-4 <=> C=-8
D-(-4)=-4/7 <=>D=24/7 <=> D=3 and 3/7
2007-02-05 11:33:06 · answer #5 · answered by su r 2 · 2⤊ 0⤋
- 9h - 6 + 12h + 40 =22
3h = 22 - 40 + 6
3h = -12
h = -12/3
h = - 4
2007-02-05 10:57:22 · answer #6 · answered by Rose 6 · 2⤊ 0⤋
-9h - 6 + 12h + 40 = 22
3h + 34 = 22
3h = - 12
h = - 4 which is Answer C
2007-02-05 11:52:45 · answer #7 · answered by Como 7 · 2⤊ 0⤋
-9h - 6 + 12h + 40 = 22
3h + 34 = 22
3h = -12
h = -12/3 = -4
C]
2007-02-05 10:55:46 · answer #8 · answered by MamaMia © 7 · 2⤊ 0⤋
How many h's do you have on the left side? (3)
Total up the numbers (non-h's) on the left. Move them to the right and change the sign.
Total the stuff on the right.
Divide by the number of h's. There's your answer.
2007-02-05 10:57:00 · answer #9 · answered by Rob S 3 · 0⤊ 3⤋