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

Tutors Answer Your Questions about Inverses (FREE)

Question 489116: evaluate and if possible, simplify
30/-15-x for x=-15
Click here to see answer by rfer(16322)

Question 489479: if f^-1 is the inverse of f, determine the value of f(f^-1(5))
Click here to see answer by richard1234(7193)

Question 490583: When comparing two numbers for the "mid value" such as:
34 x 56/ 34 + 56 =x the problem is self explanatory. But, I am trying to solve the same type of problem with the answer known and one of the numbers an unkown, such as:
34 x X/34 + X = 21.1555
Everything I have tried tells me I don't know how to approach this problem Can you please help?
Thanks,
Quaedan

Click here to see answer by Edwin McCravy(20054)

Question 494143: how do we solve 2x +15 = 3x ?
Click here to see answer by rfer(16322)

Question 494830: What is the inverse of multiplying by 2
Click here to see answer by nerdybill(7384)

Question 496308: simplify 108
Click here to see answer by Alan3354(69443)

Question 499262: x-4=15
I tried adding 4 to 15 and four and x and four but I could not figure it out.
Click here to see answer by Alan3354(69443)

Question 499262: x-4=15
I tried adding 4 to 15 and four and x and four but I could not figure it out.
Click here to see answer by deborabr(181)

Question 499317:
Click here to see answer by goldenzenith(2)

Question 496735: multiply -6/7 and 11/12
Click here to see answer by Flannery(124)

Question 496544: state the inverse operation: add 36
Click here to see answer by Flannery(124)

Question 494473: what is the multiplicative inverse or reciprocal, of 2 2/5 ?
Click here to see answer by Flannery(124)

Question 490316: what is the multiplicative inverse of -5/6?
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Question 489972: 63+17-19-17+21+19

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Question 489813: }
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Question 487453: What is the inverse operation of addition
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Question 472592: mulitplication inverse of -5/3
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Question 500931: CAN YOU WORK THIS PROBLEM OUT AND SHOW YOUR WORK 5 * 64Y
-------
32 * 100
Click here to see answer by Flannery(124)

Question 489297: "What is a middle school level example of inverse operations?"
Click here to see answer by Flannery(124)

Question 501159: what is the answer to 21n=7

Click here to see answer by MathLover1(20849)

Question 465774: how do i turn -3x+y=12 into a function form?
Click here to see answer by Flannery(124)

Question 443961: -3x+5=-1
Click here to see answer by Flannery(124)

Question 502677: five times a number is 30.Let x represent the number.Then an equation is 5x=30.solve the equation.What is the number?
Click here to see answer by Alan3354(69443)

Question 502849: What Does Multiplying by 5 Mean.?
Click here to see answer by Edwin McCravy(20054)

Question 503171: are you a homo? (faggot)
Click here to see answer by tinbar(133)

Question 503556: I need to know the inverse of 6p - 5 + 3p + 2 + 33
Click here to see answer by stanbon(75887)

Question 506981: please help me solve this problem (x^2-1)(x+1) divided by x^2-2x+1

Click here to see answer by jim_thompson5910(35256)

Question 507185: how many terms are there in 2,4,8,16,.....1024?
Click here to see answer by Edwin McCravy(20054)

Question 508303: what is the inverse operation of
1. divide by 8?
2. divide by -5?
3 multiply by 10?
4. multiply by 1/2?
5. divide by -2/3?
6. multiply by -6/5?
7. add 18?
8. add -11?
9. subtract 31?
10. subtract -25?
11. subtract -4 1/2?
12. subtract -10.06
thank you so much, and please answer all twelve :)
Click here to see answer by richard1234(7193)

Question 508204: If a triangle is not a right triangle, then it has an angle greater than 90 degrees is this statement true or false?
Click here to see answer by richard1234(7193)

Question 510163: how do i do two step equations

Click here to see answer by solver91311(24713)

Question 512108: Why does finding the reciprocal of the second number, when dividing, work?
Click here to see answer by richard1234(7193)

Question 512108: Why does finding the reciprocal of the second number, when dividing, work?
Click here to see answer by Alan3354(69443)

Question 513846: Describe an inverse operation that will undo the given operation ... Adding 4
Click here to see answer by solver91311(24713)

Question 514689: if -n equals 18 how do I solve it?
Click here to see answer by richwmiller(17219)

Question 514710:
2x-(3x-2)+5=17
Click here to see answer by jim_thompson5910(35256)

Question 516643: x+1/3=2/3
Click here to see answer by rfer(16322)

Question 516747: what is 7 1/6 - 2 3/8 equal?

Click here to see answer by rfer(16322)

Question 517316: please show example of answer for -8=1/3x+x
Thanks
Click here to see answer by rfer(16322)

Question 517372: what is the multiplicitive inverse of -1
Click here to see answer by solver91311(24713)

Question 517528: show that sqrt(c) + sqrt(c-1)=2 for some number c between 1 and 2
Click here to see answer by richard1234(7193)

Question 517785: what is the reciprocal of 2b?
Click here to see answer by Alan3354(69443)

Question 518175: if you have $100 and you have to buy 100 animals cows cost $10 pigs cost $5 and chickens cost $0.50
Click here to see answer by josmiceli(19441)

Question 518383: most space shuttles orbit the earth once every 1 1/2 hr. how many orbits are made every 24 hours?
Click here to see answer by Alan3354(69443)

Question 520152: How can I find the inverse of F(x)= (x+4)^3.or cubed.
I have y=(x+4)^3
Click here to see answer by solver91311(24713)

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