# Questions on Algebra: Expressions involving variables, substitution answered by real tutors!

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 Algebra: Expressions involving variables, substitution Solvers Lessons Answers archive Quiz In Depth

 Question 465511: can you help solve thi with all steps (x^2-1)/(x+1) =x-1 Click here to see answer by robertb(4012)

 Question 465741: can you help me with this problem factor out the largest common factor 24x9y7-18x5y5-54x3y3 Click here to see answer by sofiyac(695)

 Question 466115: I have a word problem that I do not know howto set up the equation?! A hot tub can be filled by one pipe in 15 minutes and by a second pipe in 10 minutes. How long will it take to fill the hot tub, if they are using both pipes? Click here to see answer by sofiyac(695)

 Question 466179: Can anyone help me with this? Identify the degree of each terms of the polynomial and the degree of the polynomial? -3x^3+8x^2+6x+7 Thank you! Click here to see answer by stanbon(57377)

 Question 466221: (5)/(y-4) - (8)/(y-4)= (2)/(y^2-16) 5 over y-4 minus 8 over y-4 = 2 over y squared-16 Click here to see answer by Gogonati(809)

 Question 466372: Can't figure how to set this up!!?? Practically blind without my glasses, I can only see shapes in the barnyard. Despite that, I count 46 legs, but only 14 heads in a farm yard of sheep and geese. How many of each are there? Click here to see answer by stanbon(57377)
 Question 466372: Can't figure how to set this up!!?? Practically blind without my glasses, I can only see shapes in the barnyard. Despite that, I count 46 legs, but only 14 heads in a farm yard of sheep and geese. How many of each are there? Click here to see answer by MathLover1(6634)

 Question 466371: Find the measure of an angle such that twice the measure of its compliment is 16 more than the difference between the measures of its supplement and its compliment Click here to see answer by Math-Help(7)

 Question 466442: write the equation and solve 12 subtracted from 3 times a number is 15 equation- solution- Click here to see answer by jorel1380(2518)

 Question 466523: Bob is 5 times the age of his daughter Jane. In 5 years time, Bob will be 3 times Jane's age. How old are they now? Click here to see answer by Earlsdon(6287)

 Question 466737: I have a couple problems I need help with. I did the first one, I just am having a hard time with the second one. Please help me :) a) 2(y-1)^2 = 4(y+1)^2 b) x/3 - x/12 = -4 Click here to see answer by stanbon(57377)

 Question 466739: I have done the first one, but I have a feeling it is incorrect. If by chance someone could help me out please!! :) Id really appreciate it!!! --Solve each system by elimination-- a) x-y=3 x+3y=3 b) -x+3y=6 x-9y=9 Click here to see answer by stanbon(57377)

 Question 466813: Hello, What would be the formula for solving this problem? mn/4 - y = f; solve for n Thank you Click here to see answer by stanbon(57377)

 Question 466835: Hello, I have a question on solving linear equations. -1/4(x-12) + 1/2(x+2) = x + 4 Solve for x I tried this many times and came across a solution which does not equal each sides of the equation. Please provide some assistance. Thank you Click here to see answer by Ryan O'Hara(46)
 Question 466835: Hello, I have a question on solving linear equations. -1/4(x-12) + 1/2(x+2) = x + 4 Solve for x I tried this many times and came across a solution which does not equal each sides of the equation. Please provide some assistance. Thank you Click here to see answer by kmc0204(4)
 Question 466835: Hello, I have a question on solving linear equations. -1/4(x-12) + 1/2(x+2) = x + 4 Solve for x I tried this many times and came across a solution which does not equal each sides of the equation. Please provide some assistance. Thank you Click here to see answer by stanbon(57377)
 Question 466835: Hello, I have a question on solving linear equations. -1/4(x-12) + 1/2(x+2) = x + 4 Solve for x I tried this many times and came across a solution which does not equal each sides of the equation. Please provide some assistance. Thank you Click here to see answer by MathLover1(6634)

 Question 466836: Hello, I have a question on solving linear equations. Please adivse with a solution to this problem. 1/9(p + 18) + 1/3(2p + 3) = p + 3 I tried this several time but get the wrong answer. Thank you Click here to see answer by rfer(12662)

 Question 466838: Hello, What would be the correct solution to this problem on solving linear equations? 2/3k - (k - 1/2) = 1/6(k - 5) Thank you Click here to see answer by stanbon(57377)
 Question 466838: Hello, What would be the correct solution to this problem on solving linear equations? 2/3k - (k - 1/2) = 1/6(k - 5) Thank you Click here to see answer by Ryan O'Hara(46)
 Question 466838: Hello, What would be the correct solution to this problem on solving linear equations? 2/3k - (k - 1/2) = 1/6(k - 5) Thank you Click here to see answer by rfer(12662)

 Question 466839: Hello, I attempted solving a problem on linear equations but I do not understand the formula. Please help with this problem. -5/6q - (q-1) = 1/4(-q + 80) Thank you Click here to see answer by Ryan O'Hara(46)
 Question 466839: Hello, I attempted solving a problem on linear equations but I do not understand the formula. Please help with this problem. -5/6q - (q-1) = 1/4(-q + 80) Thank you Click here to see answer by stanbon(57377)

 Question 466840: Hello, I have a question on solving linear equations. What would be the solution to this problem? 0.92x + 0.98(12-x) = 0.96(12) Thank you Click here to see answer by Ryan O'Hara(46)
 Question 466840: Hello, I have a question on solving linear equations. What would be the solution to this problem? 0.92x + 0.98(12-x) = 0.96(12) Thank you Click here to see answer by rfer(12662)
 Question 466840: Hello, I have a question on solving linear equations. What would be the solution to this problem? 0.92x + 0.98(12-x) = 0.96(12) Thank you Click here to see answer by MathLover1(6634)

 Question 467095: Hello, I have a question on solving formulas for variables. What are the steps for solving this problem. x/5 + 5y = m/n; solve for y Thank you Click here to see answer by Theo(3464)

 Question 467329: newman invested a certain amount of money at 10% interest and \$250 more than that amount at 12%. his total yearly interest was \$52.00 . how much did he in vest at the 10% rate Click here to see answer by jorel1380(2518)

 Question 467331: two trains leave the same station at the same time, one traveling east and the other traveling west. at the end of 3 hours they are 216 miles apart. if the rate of the train traveling east is 12 miles per hour faster than the rate of the other train, find their rate. Click here to see answer by jorel1380(2518)

 Question 467400: Universal set= {1,2,3,4,5,6,7,8} Set A = {1,2,4,5,8} Set B= {2,3,4,6,} Solve: A union B' Click here to see answer by jim_thompson5910(28595)

 Question 467582: Hi, You guys are the best helpers! I asked a couple question yesterday and the answer I got back I couldn't see any of them. I am taking an online Math class. My final is 200 questions. I did most of it but there were just a couple I am not getting and my ebook wont open. 1. Simplify the expression. square root -128 square root -16 2. Simplify and express in terms if i square root -144 (I can't even find anything in my book that talks about i in this chapeter) 3.Add the complex expressions, and simplify. (1.9 – 7i) + (4.2 – 2.3i) 4.Multiply the expressions, and simplify. (2x^-4y^-4) · (-7x^4y^-2) 5.Short Answer: Simplify the following expression, and rewrite it in an equivalent form with positive exponents. (6x^-1)^-2 6.Raise the quantity in parentheses to the indicated exponent, and simplify the resulting expression. (-2x^9y^4)^4 Thank you so much for your help. This math class is killing me! :) Click here to see answer by sudhanshu_kmr(1152)

 Question 467607: In a triangle ABC, angle B is 5 times angle a and angle c is 11 degrees less than 4 times angel a Click here to see answer by jorel1380(2518)