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

Tutors Answer Your Questions about Inverses (FREE)

Question 98104: 1/3(s-2)=s+4

Click here to see answer by HyperBrain(694)

Question 107784: There was not a section on combining like terms. I do,however know that inverse operations plays a big role in combining like terms. My question is how to you combine like terms?
Click here to see answer by lauramg012(4)

Question 96664: If f(x)= 5x+1, the what is its inverse function?
Click here to see answer by HyperBrain(694)

Question 108982: There was a party and everyone shook everyone's hands. There were 66 handshakes!! How many people were at the party???????????

Click here to see answer by MathLover1(20849)

Question 110861: 1. If x + a/x = b then find the value of (x^2 + bx + a)/(bx^2 - x^3)
2. If x + 1/x = 99, find the value of 100x/(3x^2 + 103x + 3)

Question from Tata Mc Graw-Hill NTSE book
Click here to see answer by edjones(8007)

Question 110966: 3 < 5, 7 ≠ 8
Click here to see answer by stanbon(75887)

Question 111759: find the inverses of the
following function f(x)= 5_______
2x+10
Click here to see answer by chitra(359)

Question 112008: i am having problems with 45 divided by (-9)= x
Click here to see answer by MathLover1(20849)

Question 112746: If f(x)=square root of x-1 find f-1(x)
Click here to see answer by mathnard(10)

Question 112746: If f(x)=square root of x-1 find f-1(x)
Click here to see answer by solver91311(24713)

Question 113164: please help me solve 4/5x=5/4
i know i need to flip the 4/5x but i keep getting confused i think the answer is
1.5 if it is im just confused on the check
Click here to see answer by stanbon(75887)

Question 114204: Simplify the expression. Write the result using positive exponents only.
5^-1 + 2^-1
Click here to see answer by MathLover1(20849)

Question 114266: +2 - (-9)

Click here to see answer by SHUgrad05(58)

Question 114569: I have been working on this problem for about an hour. I am ready to toss it out the window!
1) Let f(x) compute the time in hours to travel x miles at 58 miles per hour.
2)What does f-1(x) compute?
Thanks so much.
Click here to see answer by jim_thompson5910(35256)

Question 114917: If y is directly proportional to x and inversely proportional to the square of z, and if y=0.384 when x=6 and z=5, find the constant of variation.
Click here to see answer by stanbon(75887)

Question 116407: What is the answer to -6+5x=8x-9?
Click here to see answer by bucky(2189)

Question 116406:
What is the answer to -6+5x=8x-9
Click here to see answer by checkley71(8403)

Question 117241: I'm having trouble figuring out the Brain Game question titled CD Sort.
Your friend has a collection of CD: 2/3 of the CD's have booklets, 1/2 of the CD's are singles, and 1/4 are singles with booklets. All but two of the CDs are eith singles or have booklets or both. How many CDs does your friend have?

Thanks for your help.
Click here to see answer by scott8148(6628)

Question 117249: There exists an equation to the line: y=-5/4x+7 that goes through the x-intercept of the line: -3x-17y=9. What is the equation in slope-intercept form?

Click here to see answer by misscrt(37)

Question 118540: How do i find the inverse of this function? y= 3x-2
Click here to see answer by stanbon(75887)

Question 118815: whats 10(0)(-7)?????????????
Click here to see answer by jim_thompson5910(35256)

Question 119038: w/4+5=w/3+10 please help
Click here to see answer by jim_thompson5910(35256)

Question 119516: It says find an equation of the inverse relation. So those equation for y, if possible, and state whether or not the inverse relation is a function.
The problem is g(x)=1/2x-1.
Click here to see answer by Fombitz(32388)

Question 120768: I submitted this question the other day, but don't believe that I received a response yet. The question is: Determine those real numbers a for which the opposite of a is the same as the reciprocal of a. I understand the difference between opposite and reciprocal, but I still don't understand what the answer would be. Any help would be greatly appreciated!!!
Click here to see answer by Fombitz(32388)

Question 63602: 6(t+3)+8-5(t+2)=
Click here to see answer by brnagn1957(1)

Question 122094:
how do you solve these 2 questions: 3/4c=12 and 11/12=3/4h
Click here to see answer by checkley71(8403)

Question 122534: 1/5+m=-2/5
Click here to see answer by Fombitz(32388)

Question 123294: -5[2x+3(5-x)]
Click here to see answer by sajankumar(7)

Question 123722: Please help me solve this equation:
Subtract and simplify
7/9-11/18=

Click here to see answer by nadinadan(32)

Question 125574: 1/2(x-5)=x/4
I have tried this question so many ways, my head hurts. I can't figure it out! I only need one example and I will be able to complete my homework, unfortunately the text book does not give me an example. I have plans to go into school early if you can't help, but I thought I would give this a shot. I like to work things out on my own, but this is review from last year and after not seeing math problems for a year I'm struggling. Thanks
Click here to see answer by ankor@dixie-net.com(22740)

Question 125669: what is the answer to 6x + x = -14
Click here to see answer by praseenakos@yahoo.com(507)

Question 125979: What is the inverse of 8x+7?
Click here to see answer by jim_thompson5910(35256)

Question 123909: w divded by 9 =14
Click here to see answer by apachemexican1(64)

Question 128137: -15+8x=-31
Click here to see answer by chitra(359)

Question 128129: -15+8x=-31
Click here to see answer by JessicaGill(40)

Question 123730: How do you subtract fractions
Click here to see answer by apachemexican1(64)

Question 128727: x varies directly as the square of s and inversely as t. how does x change when s is doubled? when both s and t are doubled?
Click here to see answer by stanbon(75887)

Question 130169:

On my worksheet it says Solve x/2 + 5x/10= -2
I came up with x=-2 but I'm not sure can you please help?
Thanks
Click here to see answer by checkley71(8403)

Question 130334: Please help me solve this equation: my work sheet says: "A bag contains 5 green marbles and 3 blue marbles. What is the probability of drawing a blue marble, then another blue marble, then a green marble, replacing the marble after each draw?" and then it has choices of: [A] 13/8 [B] 75/512 [C] 45/512 [D] 11/8
sorry that was so long! thank you so much!
Click here to see answer by edjones(8007)

Question 131058: 15=6h

Click here to see answer by jim_thompson5910(35256)

Question 131543: Find a number such that 1 less than the number divided by the reciprocal of the number is equal to 1. (Leave the answeres in exact form, that is with the square root.)
Click here to see answer by edjones(8007)

Question 131849: How do I work this Problem out 2(3h-2)-2h=2(h-3)h=?
Thanks
Click here to see answer by benni1013(206)

Question 132013: Will you please help me with this??
The amount of candy shared by the class varies inversely with the number of students in the class. If there are 120 pieces of candy, how much would each student receive in a class of 30?
Click here to see answer by stanbon(75887)

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