# Questions on Algebra: Equations answered by real tutors!

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 Algebra: Equations Solvers Lessons Answers archive Quiz In Depth

 Question 377567: I have a problem that I can't figure out. Solve the following equation: -5/6x=-30 Click here to see answer by rfer(12660)

 Question 377606: Please help me solve this: 1)Find the solutions of the equation 16x^4=(x-4)^4 2)Find the value of x and y, where x and y are real numbers (x-y)+3i=7+yi Click here to see answer by edjones(7569)

 Question 377681: factory completely 9x^2+4 could someoen show me how to does kind of problems thank you Click here to see answer by stanbon(57361)

 Question 377682: determing whether the following trinomial is a perfect square. if it is, factor the binomial. Click here to see answer by stanbon(57361)

 Question 377706: Use the following information to graph the polynomial on graph paper f(x) = 3(x+4)(x-5)^2 a) Use tle leading coefficient test to determine the graph end's behavior b) Find the x-intercepts, State whether the graph crosses the x-axis or touches the x-axis and turns around zero multiplicity cross/touch c) find the y-intercept Click here to see answer by robertb(4012)

 Question 377815: The sum of two numbers is 57. One of the numbers is 21. Which of the following equations could be used to find the other number? Click here to see answer by stanbon(57361)

 Question 377883: Problem : 7+w - 10 = 2w Question : What is w ? Click here to see answer by sophxmai(60)
 Question 377883: Problem : 7+w - 10 = 2w Question : What is w ? Click here to see answer by mananth(12270)

 Question 377965: Hi, My name is Emma, I really dont get how to do the perimeter with the equation on one side then a number with a variable next to it... like for example this square has 36-5x on one side of the square then it has 4x on the other side...please help me, I have no clue what i'm doing! Thanks(: Click here to see answer by richard1234(5390)
 Question 377965: Hi, My name is Emma, I really dont get how to do the perimeter with the equation on one side then a number with a variable next to it... like for example this square has 36-5x on one side of the square then it has 4x on the other side...please help me, I have no clue what i'm doing! Thanks(: Click here to see answer by stanbon(57361)

 Question 378030: a cyclist travels 70 miles in 7 hours going against the wind and 56 miles in 4 hours with the wind. what is the rate in still air= what is the rate of the wind= Click here to see answer by Alan3354(30993)

 Question 378129: two years ago, Anton was three times as old as his sister, Nathalie. in 4 years, he will be only twice his sister's age. find their present ages. Click here to see answer by mananth(12270)

 Question 378128: two tears ago, Anton was three times as old as his sister, Nathalie. in 4 years, he will be only twice his sister's age. find their present ages. Click here to see answer by mananth(12270)

 Question 378028: find the values of x and y that solve the following system of equations -3x- 8y=19 4x+9y=-22 Click here to see answer by mananth(12270)

 Question 378086: Hello . I am in need of help with a few problems. Could you show me how to solve these step by step ? Thank you so much for your time. 1) Write 36 in exponential notation 2) Simplify ( -4xy5)( -5x4y3) 3) Simplify (9x2y4)3 4) Simplify [5 a b^2] ^2 top part C^3 bottom part 5) Simplify 6) Write with positive exponents: top part c^-4 d^-2 bottom part Click here to see answer by nyc_function(2733)

 Question 377888: I don't understand this. write an equation in slope-intercept form of the line that passes through the given point and is perpendicular to the given line. (-3,1); y= 1/3x + 2 write an equation in slope-intercept form of the line that passes through the given point and is parallel to the given line. (-6,4); y= -3/2x + 2 Click here to see answer by nyc_function(2733)

 Question 378272: Complete the square and write the equation in standard form. Then give the center and radius of the circle. Graph on graph paper. x^2 + y^2 + 2x - 4y - 31 = 0 (x-h)^2 + (y-k)^2 = r^2 Standard form Center Radius Step by step sequence. Thanks. Click here to see answer by Fombitz(13828)

 Question 378276: Give the slope and y-intercept of the line then graph. y = 4x -3 Slope y-intercept x=3 graph on graph paper y= -4 graph on graph paper Click here to see answer by ewatrrr(10682)

 Question 378435: First i need to explain the drawings i have been given. I was given a triangle and a square. On each of the three sides of the triangle there is x-y, and on each side of the square there is just y. So adding (x-y)+(x-y)+(x-y) would give you the permiter of the triangle, and adding the 4 ys would give you the permiter of the square. Now the question is,the perimters of the square and the triangle are equal. Find (x,y) if three times the perimter of the square exceeds twice the perimter of the triangle by 24. Click here to see answer by scott8148(6628)

 Question 378774: The question is: A family hires tables and chairs for a party. Hire charges are: Table \$10 each Chairs \$4 each Delivery \$15 What is the total cost in dollars for hire and delivery of K tables and 6K chairs? What is the answer? How do you work it out? THANK YOU SO MUCH. Click here to see answer by mananth(12270)

 Question 378797: how to write 9 more than 1/2 of n is no more than -8 Is it 9 + 1/2(n) = -8? Click here to see answer by robertb(4012)

 Question 378846: Solve equations by factoring Solve the equation. (3r + 9)(r - 1) = -(21r - 21) Click here to see answer by jsmallt9(3296)

 Question 378895: Let P=3x and q=2-x; solve for x P/4=Q/2 Click here to see answer by ewatrrr(10682)

 Question 378889: find the solution of the following differential equations: 1. dy/dx= te^y, y(1)=0 2. x^2y'+2xy=cosx Click here to see answer by Fombitz(13828)

 Question 378836: Solve equations by factoring (3r + 9)(r - 1) = -(21r - 21) Click here to see answer by jsmallt9(3296)

 Question 379232: How do you do a double sided equation that looks like this: 4x-8x+4=2y-5 I would like to know maybe like some steps in how this can be done. Click here to see answer by Alan3354(30993)

 Question 379267: thee more than 4 times a number equal to 9 less than twice the number Click here to see answer by stanbon(57361)
 Question 379267: thee more than 4 times a number equal to 9 less than twice the number Click here to see answer by rfer(12660)