# Questions on Algebra: Equations answered by real tutors!

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 Algebra: Equations Solvers Lessons Answers archive Quiz In Depth

 Question 81820: Solve the system by addition or substitution. 6x – 2y = 6 y = 3x – 1 Click here to see answer by vertciel(183)

 Question 80429: How do you solve the following? 2(x-3) - 3(x+5) = 3(x-2)-7 Click here to see answer by vertciel(183)

 Question 81706: How do I solve by multiplying this equation? 3xy2(5xy – 4x + 6y) Click here to see answer by checkley75(3666)

 Question 81704: How do I subtract 2x – 3x2 + 5x3 from 5x3 + 4x – x2? Click here to see answer by checkley75(3666)

 Question 81874: break it down for me.. 3/4y + 2 = 1/4y +5 and also.. 5(n+1) = 2(n+7) Click here to see answer by stanbon(57395)

 Question 81821: Solve the system by addition or substitution. –8x + 2y = 8 y = 4 + 4x Click here to see answer by praseenakos(2)

 Question 81999: I keep trying this on my calculator and i keep getting an error message. Can anyone help me with this.Please? Use a calculator to approximate 8√5+8√3 to the nearest hundredth. Click here to see answer by Edwin McCravy(8912)

 Question 82025: One factor of x squared - 2X -24 is: A. (x - 24) B. (x - 4) C. (x - 6) D. (x + 6) Click here to see answer by checkley75(3666)

 Question 81991: Evaluate √-100 , if possible. I got –8 Is it right? Click here to see answer by checkley75(3666)

 Question 82000: I have done these before but I can not remember how I am suppose to do this?Simplify. 5√252 Click here to see answer by checkley75(3666)

 Question 81990: Simplify. 10√3x+7√3x I got 51√x Is it right? Click here to see answer by checkley75(3666)

 Question 82043: Jill has \$3.50 in nickels and dimes. If she has 50 coins, how many of each type of coin does she have? Click here to see answer by jim_thompson5910(28598)

 Question 82045: Peanuts are selling for \$2 per pound and cashews are selling for \$5 per pound. How much of each type of nut would be needed to create a 20 lb mixture that would sell for \$2.75 per pound? Click here to see answer by checkley75(3666)

 Question 82056: Find the distance between (10, 0) and (–10, 0). How do I do these ones again? Click here to see answer by Earlsdon(6287)

 Question 82170: This is the first time I need help bad and using this. I have to write an equation that models between time and distance using this chart. on the chart (time[seconds]=distance) 1=1100 2=2200 3=3300 4=4400 5=5500 Also, i need help with this problem. What number of hours are the two plans equal? Plan A; \$20 per hour Plan B: \$8 per hour + \$12 If you can help me thank you very much! Click here to see answer by lovebug93(2)
 Question 82170: This is the first time I need help bad and using this. I have to write an equation that models between time and distance using this chart. on the chart (time[seconds]=distance) 1=1100 2=2200 3=3300 4=4400 5=5500 Also, i need help with this problem. What number of hours are the two plans equal? Plan A; \$20 per hour Plan B: \$8 per hour + \$12 If you can help me thank you very much! Click here to see answer by jim_thompson5910(28598)

 Question 82172: 18x^2 15Y^3 ______ x _____ 10y^2 24x Help please. I have these for homework and just learned today but I got home and don't understand. 14xy^2 x 36m^4n^2 ______ _________ 27m^2n 7x^2y Click here to see answer by stanbon(57395)

 Question 81443: Solve the system by addition. 5x – 3y = 13 4x – 3y = 11 Click here to see answer by vertciel(183)

 Question 82206: If n-(-5)=35 what is the related fact? I just know that n=30. Click here to see answer by stanbon(57395)

 Question 81996: Solve. √y+16=1 I got √y17 Is it right? Click here to see answer by vertciel(183)

 Question 82458: Hello, I need help with the following problems as I get an error message on my calculator! its: 1. sqrt x-1=3 ( I don't know the square root symbol!) 2. sqrt x^3=8 3. 3 sqrt x^2=4 4. Is sqrt x^2 power an identity (true for all values of x)? Thanks so much for your help!! :) Click here to see answer by ankor@dixie-net.com(15660)

 Question 81992: Simplify. (2x√2x)(3√5x) I got 6x^2√10 Is it right? Click here to see answer by vertciel(183)

 Question 82548: Find the solutions to the equation. x^2 + 2x - 8 = 0. Click here to see answer by ssonygill(12)

 Question 82547: Find the solution to the equation. 6x-3= -2x + 21. Click here to see answer by ssonygill(12)

 Question 82549: Find the solutions to the equation. x - 5/x = 4. Click here to see answer by tutor_paul(490)

 Question 82585: I have to solve this: √x-1=x-3 This is what I have done so far. Am I on the right track? What do I do now? "The radical symbol is only over the x-1" √x-1=x-3 (√x-1)^2=(x-3)^2 x-1 = (x-3)(x-3) x-1 = x^2-6x+9 x-1 = x^2-6x+9 0=x^2-7x+10 Click here to see answer by ptaylor(2048)
 Question 82585: I have to solve this: √x-1=x-3 This is what I have done so far. Am I on the right track? What do I do now? "The radical symbol is only over the x-1" √x-1=x-3 (√x-1)^2=(x-3)^2 x-1 = (x-3)(x-3) x-1 = x^2-6x+9 x-1 = x^2-6x+9 0=x^2-7x+10 Click here to see answer by tutorcecilia(2152)

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