Questions on Algebra: Inverse operations for addition and multiplication, reciprocals answered by real tutors!

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Question 182487: 14 = 2/3(9y - 15)
Please show me how to solve the problem. I am a parent trying to help my child with her pre-Algebra. There is no example in her textbook (Prentice Hall Mathematics Pre-Algebra) FLORIDA. It has been many years since I was in school and, frankly, I can't figure it out! I don't know which operation to perform first.
Thanks.
Lin Daily
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Question 182570: Last week terri worked 9.5 hours. This was 3.5 hours less than the number of hours that Brad worked. how many hours did brad work.
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Question 185447: Find an equation for the inverse of y=2x^2-3. Identify the domain and range of each equation.
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Question 186730: how do you use reciprocals in algebra?(x/15=20/50)

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Question 187708: Hi,
I'm trying to find the inverse function of: f(x) = 8x^3 - 1
Not really sure how to approach this one. I've plotted points on a graph and took the inverses of those points, but I can't come up with a function to get those points.
Thanks,
Lynn
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Question 187935: how do you make this fraction into a multiplication problem using the distributive principle 3x+15
_____
3
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Question 188206: HELP!! please! i have a test tomorrow and my teacher told us two of the problems on the test one of which is but i dont know what the top is! i hope its not needed! thank you so so much!!
Click here to see answer by Edwin McCravy(20054)

Question 188359: Pre-Algebra- I think..not sure. This problem is from Contemporary's Number Power Algebra 3 by Robert Mitchell
TERMS ON BOTH SIDES OF AN EQUATION:
and *** this one I tried, but kept getting the wrong answer etc..
here is the problem***

Any help would be greatly appreciated, as I am studying for a test in Pre-algebra/algebra, and need to attain a score of 55+ in Pre-algebra, and a score of 30+ in algebra. This test is on Saturday, (28th March), and I have been studying, religiously, but then..somewhere along the way, I become hopelessly lost, and end up with answerrs that are so-far out in left field, that I am not even sure I am in the same class etc....I should mention, that I am a returning adult...and not fresh out of High-School. My last algebra class was twenty-five+ years ago etc.....
Thank-you for your time, and any helpful suggestions..other than do not enter school would be greatly appreciated!!!! (the above joke was a lame attempt at keeping/finding humour in this stressful aspiration!!!)
Thanx~ John
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Question 189089: Give an example of an inverse variation?
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Question 189391: i cant seem to figure out how to solve:
(1/m)/(m-8/8m)
i know you have to do smae change flip and it should be
1/m * 8m/m-8
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Question 189494: Id have a question if x varies inversely as y and x=2 when y=8, and i should find x when y=17 then x=12 or does x=11?
Another question would be; if y varies directly with x and y=10 when x=15, find y when x=6, so y=1?
My last question would be; could someone explain this to me; if y varies directly as x and inversely as z^2, and y=3 when x=2 and z=4, what is the value of x when y=9 and z=4? how would i solve this?
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Question 189985: if 2 numbers are opposite of each other, are their reciprocals also opposite of each other?
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Question 190049: please help with this
if 2x=3y=6z
then what will be value of
1/x + 1/y + 1/z
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Question 191377: I start understanding something then we switch something that I have no clue whats going on... ok here it goes

y/4+5=2 or 3/7v-2=10

i can do these problems, only if it doesn't involve a fraction! Pleas help
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Question 191376: if two more than a number is 1 less than 4 times the reciprocal of the number. Find the number
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Question 191631: please help me multiply problem.

-5(16-9n)

thank you

Chris
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Question 191635: please help me multiply this problem.

-3xy(7x^2-8xy+9y^2)

thanks
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Question 194805: 8+(a+6)=(8+a)+6
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Question 194805: 8+(a+6)=(8+a)+6
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Question 195043: Hi, could you please help me with an algebra equation?
It is:
Find the value of x: -20-x=-12

If you can find the time to answer it, please do.
Thankyou!!!!!
Shannon
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Question 196928: What would be the reciprocal of -3 over 4?
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Question 197256: I am trying to help my sister with the inverse variation. I am not sure how to do that type of problem. Can you please walk me through step by step?
thanks,
mw
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Question 197884: What is the multiplicative inverse of 1/3?
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Question 197920: 8 less than 28y
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Question 198386: how do i solve fractional equations... 2/8(x) x 5/15?
Help i have a test monday!!!1
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Question 199001: 1/19.5 = 1/x - 1/2x (solve for x)
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Question 199018: The additive inverse of 5 is
1)1 over 5
2)-1 over 5
3)0
4)-5
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Question 199967: Find the inverse of: f(x)=3/2x-1
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Question 200515: why do we have to have math i mean its so dumb and boreding i mean dang ITS TO HARD
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Question 200529: The brackets may have confused in the previous version of the question I submitted.
This a question for solving electrical resistance in a parallel circuit. The formula is 1/Rt = 1/R1 + 1/R2 +1/R3 + 1/Rn.
Rt represents total resistance the other fractions are separate branch resistances.
1/Rt= 1/12 + 1/15 + 1/5
Rt=?
Thank you
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Question 200527: 1/R(total)= 1/12 + 1/15 + 1/5
R(total)=?
How is this solved?
Thank you
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Question 200800: Please help me solve this equation
{2x-y^2}/ {x-y}
x=10 and y=(-5)
According to the TI-84 the answer is 3 How?
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Question 200971: Whch of the following expressions represent the expandecd form of (3x-4y)^2?
A. 9x^2 + 24xy - 16y^2
B. 9x^2 - 24xy = 16y^2
C. 12x^2 + 16y^2
D. 12x^2 - 12xy = 16y^2
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Question 203021: If two numbers are opposite of each other, are their reciprocals also opposite of each other?
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Question 204180: Hi, I'm having a problem simplify this problem:
3(5+6b)+8(2a-b)=
The issue I'm having is I can't figure out how to simplifiy it using properties of addition and multiplication. I understand using like terms but it seems I need to do something else to.

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Question 204759: Determine whether the function has an inverse function and if so, find the inverse function f(x)=x^3+8
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Question 205044: Given F(x) shown below, complete the equation for the inverse of F(x). If necessary, use the slash mark ( / ) for the division symbol.
f(x)=2x/7+4

F-1(y) = _____
Answer:

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Question 205223: 2x2+9x-5
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Question 6036: The reciprocal of -2 is,..
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Question 6036: The reciprocal of -2 is,..
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