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

Tutors Answer Your Questions about Inverses (FREE)

Question 443183: Can you please help me with this question?
Solve using the addition and multiplication principles:
6-4x> 1-3x
Thanks!
Click here to see answer by swincher4391(726)

Question 443183: Can you please help me with this question?
Solve using the addition and multiplication principles:
6-4x> 1-3x
Thanks!
Click here to see answer by shammar(2)

Question 443962: -3x+5=-1
Click here to see answer by rwm(914)

Question 444263: y=4x-8. Write the equation of the inverse of each given function, solved for y.
Click here to see answer by edjones(7569)

Question 444704: x + -6.7 = -0.6

Click here to see answer by jorel1380(2518)

Question 446885: simpplify
2log3(x) - log 3 (x^3/6) - 1
Click here to see answer by stanbon(57967)

Question 446590: barney chose two numbers a and b with 0 < a < b < 1.
He decided to combine the numbers and wrote down a+b, b-a, a-b, a/b, b/a and ab.
He saw that he had written the same number down twice and, even more surprisingly, that he had also written a second number down twice.
What were his possible starting numbers
Click here to see answer by richard1234(5390)

Question 447944: solve for u
log3 (u + 18) + log3 (u) = 5
Click here to see answer by stanbon(57967)

Question 447944: solve for u
log3 (u + 18) + log3 (u) = 5
Click here to see answer by Alan3354(31519)

Question 447943: simplify
ln(1/e)^6-4t
Click here to see answer by Gogonati(817)

Question 447941: Suppose f(x) = 2^(x^2) - 5, for x >=0.
find f^-1, the inverse of f. Determine the domain of f^-1.
compute f^(-11).
Click here to see answer by Gogonati(817)

Question 449298: What is the inverse of (5x)/(8x+7)
Click here to see answer by nerdybill(7003)

Question 454771: I am not sure how to find out the LCD. Can you please help? Thanks!!
3a^2/a^2+a+1 2a/a-1 a^3/a^3-1
I know that in order to find the LCD you would have to multiply the top and bottom of the fraction but on this one I just keep getting stuck :( Help!
Click here to see answer by stanbon(57967)

Question 457510: 2. In the equation below, if the x-value is increased by 3, what would be the effect on the corresponding y-value?
8x + y = 32

Click here to see answer by richwmiller(9144)

Question 457510: 2. In the equation below, if the x-value is increased by 3, what would be the effect on the corresponding y-value?
8x + y = 32

Click here to see answer by stanbon(57967)

Question 457858: I'm trying to solve the inequality:
-3 < x < 0 so that a < 1/(x+4) < b
The answer in the back of the book is: a = 1/4 and b = 1
but, when I work it, I get the opposite.
Here's what I am doing:
-3 < x < 0
-3+4 < x+4 < 0+4
1 < x+4 < 4
1/1 < 1/(x+4) < 1/4
1 < 1/(x+4)< 1/4

a = 1 b = 1/4
Any insight would be appreciated.
Bill
Click here to see answer by scott8148(6628)

Question 458058: -3(3t+9)
Click here to see answer by wilft1(67)

Question 458316: Determine the inverse of f(x)=5(2)^x
Click here to see answer by robertb(4012)

Question 458619: What is -1/9 times 1/7
Click here to see answer by rfer(12730)

Question 459648: Jane is thinking of a number such that 3 less than twice that number is the additive inverse of 7.
What is the number?
Which inverse operation in the correct sequence will solve the riddle?
A. Add 3; then multiply by 2
B. Add 3; then divide by 2
C. Multiply by 1/2, than subtract 3.
D. Multiply by 1/2, then divide by 3.
Click here to see answer by richwmiller(9144)

Question 460256: Please help with this question...I cant figure it out...thanks!
Suppose $5000 is in invested at interest rate k, compounded continuously, and grows to 6954.84 in 6 yr.
a)Find the interest rate.
b)Find the exponential growth function.
c)Find the balance after 10 yr.
d)Find the doubling time.
Click here to see answer by nerdybill(7003)

Question 460211: what is the equation for the line that contains the point (6,-10) and is perpendicular to the line y=-8+x
Click here to see answer by ankor@dixie-net.com(15746)

Question 461450: -3+(-12--9)+4(7-11)
Click here to see answer by MathLover1(6812)

Question 462380: Can someone show me how to solve using the addition and multiplication principles?
2 + 5x < 42

Click here to see answer by MathLover1(6812)

Question 462380: Can someone show me how to solve using the addition and multiplication principles?
2 + 5x < 42

Click here to see answer by stanbon(57967)

Question 462896: 12x - 1 = 3 + 5x
Click here to see answer by rfer(12730)

Question 463985: Put into reduced ratio form;
4 1/2 miles to 1 3/10 miles
Click here to see answer by algebrahouse.com(1079)

Question 464316: a-0.9=0.3
Click here to see answer by stanbon(57967)

Question 464355: For the function f (x) = 7x + 9, determine whether f (x) is one-to-one. If so, find the formula for the inverse and give the domain and range for f -1.
Click here to see answer by lwsshak3(6761)

Question 464621: Multiply -9/5 x (9/8)
Click here to see answer by jorel1380(2518)

Question 464637: Solve using the multiplcation principle. Simplify

-5/6x= -9/10
Click here to see answer by rfer(12730)

Question 464756: y=8 what is its perpendicular
Click here to see answer by richard1234(5390)

Question 464814: Please help me find the reciprocal of: 2.13
Click here to see answer by aortiz12499(3)

Question 465996: what is this 7 X 8 = 8 X 7
Click here to see answer by sofiyac(695)

Question 466497: Beginning & Intermediate Algebra: Please explain in simple terms, what does the addition/subtraction and multiplication/division properties means?
How do I know what to substract or add in linear equations?
Which number to add or subtract on both sides and how do I know when to do either?
Also what is the definition of a slope on a graph?
Click here to see answer by richard1234(5390)

Question 467300: hi i really need help with these problems I would greatly appreciate it if you could help..
#1)the multiplicative inverse of 1 over 3 is..
1)1/3
2)-1/3
3)3
4)-3
#2)-6(a-7) state the name of the property used
#3)the quotient (9.2 x 10 exponent 6) & (2.3 x 10 exponent 2)
thank you for you time.
Click here to see answer by jorel1380(2518)

Question 467756: how can I learn algebra in a short time.?
how can I learn algebra in a short time

Click here to see answer by Alan3354(31519)

Question 470563: solve using addition and multiplication principle
show work
24 > 10 - 2x
Click here to see answer by robertb(4012)

Question 470560: solve using the multiplication principle
-2x < -8
Click here to see answer by robertb(4012)

Question 472002: -10=-14v+14v

Click here to see answer by MathLover1(6812)

Question 472806: Evaluate the following function or inverse; then write the ordered pair f(x)=3x+1 and f^-1=x-1/3
f(0)
Click here to see answer by stanbon(57967)

Question 474361: can you tell me how to slove the quadratic equation -1x^2+12x-32 step by step
Click here to see answer by Alan3354(31519)

Question 474361: can you tell me how to slove the quadratic equation -1x^2+12x-32 step by step
Click here to see answer by josmiceli(9817)

Question 474931: Please help me solve this. What would be the answer to this equation.
5x^-2y^10 over 2x^-1(-3x^-3y^-1)^-2

Click here to see answer by mananth(12270)

Question 477037: if a number is subtracted from twice its reciprocal, The result is -23/5.What is the number.
Click here to see answer by nerdybill(7003)

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