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Can you explain my daughters math problem...I just don't get it...I was never good in math. =o)?
The question is
-4A+5-2A-9=44
What is A?
Please show me how to solve it....Thanks so much!!!
Dang this is only 6th grade math...I am in trouble!!
Thanks for everyones help...I actually get it....too bad they didn't have this site when I was in school!
Thanks again!!!
Oh and ib..thanks for changing your answer cuz type made no sense...lol
7 Answers
- 1 decade agoFavorite Answer
A is a variable. A variable represents a number that is currently unknown. To solve...
Add -4A and -2A to get -6A. This is called combining like terms.
Next add 5 and -9 to get -4. So right now you have -6A-4=44
Then since you want to get A by itself you need to get rid of -4
so add 4 to both sides like this -6A-4+4=44+4
Then you have -6A=48
Then since -6A means -6 times A divide each side by -6
-6A/-6=48/-6
you get A= -8
- its_victoria08Lv 61 decade ago
Combine like terms. Everything that has A can be added/subtracted. Then, all the other numbers that don't have A can be added/subtracted. First, work on each side of the equal sign.
-4A + 5 - 2A - 9 = 44
You can "combine" the -4A and the -2A. What's -4 - 2? -6--So you've got a -6A on the left side. You can also combine the 5 and -9. What's 5 - 9? -4--So, you've got a -4 on the left side also.
-6A - 4 = 44
You are trying to get the A by itself with a number on the right. Whatever you do to the left, you must do to the right. If you add 4 to the left, what will happen to that -4? It will cancel, right. Because 4 - 4 = 0.
But, since we want to add 4 to the left, we must add 4 to the right.
-6A - 4 + 4 = 44 + 4
-6A = 48
OK, -6A is the same as -6 times A. Before, we did the opposite of subtraction to get rid of the 4. Well, what's the opposite of multiplication? Right, division. So we need to divide by -6 on both sides.
-6A / -6 = 48 / -6
A = -8
- Anonymous1 decade ago
Ok what you do is....
First- combine the like terms: -4A and -2A = -6A
Then you combine the other like terms: 5 -9 = -3
So you end up with -6A -3 = 44
Add the -3 to 44 and you get 42
That leaves -6A = 42
Now you divide 42 by -6
And the answer is: A= -8
That's how you solve it.... and I think "A" is called a variable.
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- ibLv 41 decade ago
-4A + 5 - 2A - 9 = 44
or -6A -4 = 44
or -6A = 44 + 4
or -6A = 48
or A = -48/6
or A = -8
- sydney77Lv 61 decade ago
OMG!!!! I'm with you I don't get it either and I think it has made me more confused with the other answerer's explaining it. Doesn't make sense at all to me. I can't believe this is 6th grade work. I would flunk out for sure.