# Questions on Algebra: Equations answered by real tutors!

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 Algebra: Equations Solvers Lessons Answers archive Quiz In Depth

 Question 163854: I need help solving 0.6(x-50)=18-0.3(40-10x) Click here to see answer by midwood_trail(310)

 Question 163852: 19-3n= -2n Click here to see answer by SAT Math Tutor(36)
 Question 163852: 19-3n= -2n Click here to see answer by midwood_trail(310)

 Question 163868: Write an equation of the line passing through (5,0) and parallel to the line y=5x-2 Click here to see answer by Fombitz(13828)

 Question 163933: Please help me solve this question: Solve, and write the answer in set notation: |3x – 6| > 3 Click here to see answer by stanbon(57342)

 Question 163932: Please help me solve this question: Solve –2 < 2x + 1 ≤ 6 Thanks! Click here to see answer by stanbon(57342)

 Question 163931: Please help!!! Find the difference quotient f(x+h)-f(x)over h for 2-x^2 THANKS!!! Click here to see answer by stanbon(57342)

 Question 163929: Please help me answer the following homework problem. I do not understand how to solve it. Given f(x)= 1-5x and g(x)= x^2-3 find the composite function and simplify. Click here to see answer by stanbon(57342)

 Question 163984: 3w-8-7w=-16 Click here to see answer by jim_thompson5910(28595)

 Question 164024: i had a problem: x/-4=17. x equaled -68, but i don't know how i got that? how do you solve it Click here to see answer by stanbon(57342)

 Question 164016: 7x-(4-2x)=3x+15-1 Click here to see answer by Alan3354(30993)

 Question 164038: How do I solve the following by factoring?: X^2 + 7x +10 = 0 Click here to see answer by nerdybill(6958)

 Question 164046: I need to solve this by substitution or addition, whichever one is easier. 2y-x=3 x=3y-5 Click here to see answer by KnightOwlTutor(293)

 Question 164045: I need to solve this by the addition method. 3/7x+5/9y=27 1/9x+2/7y=7 Click here to see answer by Alan3354(30993)

 Question 164078: Solve for x: 2 + 9x = -5x – 18 Click here to see answer by jim_thompson5910(28595)

 Question 164075: Solve for x: 2 + 9x = -5x – 18 Click here to see answer by jim_thompson5910(28595)

 Question 164044: I need to solve this by addition method and determine whether they are independent, dependent, or inconsistent. Here is the equation: -3x+2y=8 3x+2y=8 Click here to see answer by elima(1433)

 Question 164242: Solve by the elimination method. 0.3x - 0.2y = 4 0.5x + 0.5y = 45/23 (fraction) What is the solution of the system? (Type an ordered pair. Type an integer or a fraction. Type N if there is no solution. Type I if there are infinitely many solution.) Click here to see answer by Fombitz(13828)

 Question 164306: I really need help trying to make an equation out of this problem. I am having a really hard time turning a word problem into an equation. I am not asking for the answer just help making an equation!! Thank you very much!!! Kathy Gafford When will Johnson be twice as wealthy as Smith if each has \$4000 now and if their estates are increasing at the annual rates of \$400 for Smith and \$1,200 for Johnson? Click here to see answer by stanbon(57342)
 Question 164306: I really need help trying to make an equation out of this problem. I am having a really hard time turning a word problem into an equation. I am not asking for the answer just help making an equation!! Thank you very much!!! Kathy Gafford When will Johnson be twice as wealthy as Smith if each has \$4000 now and if their estates are increasing at the annual rates of \$400 for Smith and \$1,200 for Johnson? Click here to see answer by aka042(26)

 Question 164381: system of equation with four variables. x + y + z + w = 0 x + y - z - w = 1 x - y + z + w = 3 x - y - z + w = -1 Click here to see answer by Edwin McCravy(8909)

 Question 164423: a turboprop plane flying with the wind flew 800 miles in 4 hrs. Flying against the wind, the plane required 5 hours to travel the same distance. Find the rate of the plane in calm air and the rate of the wind? What are the steps I need to solve this problem??? Click here to see answer by Fombitz(13828)

 Question 164319: I am given the equation y=-2x The instructions I am given are as stated, Use a table of values and graph six sets of ordered pairs for the equation. Describe the graph. Click here to see answer by Fombitz(13828)

 Question 164422: A rowing team rowing with the current traveled 20 kn in 2 hrs. Rowing against the current, the team rowed 12 kn in the same amount of time. Find the rate of the team in calm water and the rate of the current. Click here to see answer by scott8148(6628)

 Question 164490: help with problem: m-6(m+10)=50 Need all steps. Thanks. Click here to see answer by midwood_trail(310)

 Question 164584: Mr. Andreas has a video rental business. The table shows how much he charges to rent videos. Write an equation that could be used to find the cost of renting x videos. Explain how you found your equation. Use your equation to find the cost of renting 10 videos. Videos / Price 1 - \$4.00 2 - \$6.00 3 - \$8.00 4 - \$10.00 5 - \$12.00 6 - \$14.00 Click here to see answer by jojo14344(1512)

 Question 164593: *+*+*+*=*x*x*x* what it is the value of the star Click here to see answer by MRperkins(300)

 Question 164696: You do not have an option for my topic, so I will explain it to you. I am trying to understand how to use Factoring towers for my homework assignment. My teacher explained it in class, and gave us notes, but the notes are really hard to understand. It is not in the book, either. I barely remaber how to use these towers. My problems deal with factoring trinomials, and I must use the factor tower way. I cannot use the "big x". Can you help me? Click here to see answer by Alan3354(30993)

 Question 164698: I need to know how to solve the following problems: 3/4n+16=2-1/8n 3/2y-y=4+1/2y 1/4(7-3g)=g/8 18-3.8x+7.36-1.9x 2[st3(s-1)]+18 Click here to see answer by checkley77(12569)

 Question 164718: Factor completely. 9w^2+1-6w the answer that I got is (3w-1)^2 Click here to see answer by Alan3354(30993)

 Question 164710: can someone help me with this two question. Classify the function as a linear, quadratic, or exponential. 1. f(x) = -5x - 4 2. f(x) = (x - 5)(x + 4) Click here to see answer by edjones(7569)

 Question 164630: 7=6x+4y Click here to see answer by checkley77(12569)

 Question 164727: 20 = 6x+ 8 Click here to see answer by edjones(7569)

 Question 164719: rational equations: Solve for X using LCD method x+1/3 + x-3/4 = 1/6 Click here to see answer by edjones(7569)

 Question 164733: Factor 10x^2-21x-10 Click here to see answer by edjones(7569)
 Question 164733: Factor 10x^2-21x-10 Click here to see answer by gonzo(654)

 Question 164729: Writing and solving two step equations: Translate the statement into an equation. Then solve the equation. Page 136 problem 10 Seven subtracted from the quotient of a number and 2 is -6. Click here to see answer by checkley77(12569)

 Question 164774: 3n over 4 - 1 over 3 = 2n-1 over 6 multiplied each fraction by 12 and cancelled denominators to get whole numbers then got n=2 over 5 but when I checked answer and substituted n for 2 over 5, i didnt get an equal answer Click here to see answer by Edwin McCravy(8909)
 Question 164774: 3n over 4 - 1 over 3 = 2n-1 over 6 multiplied each fraction by 12 and cancelled denominators to get whole numbers then got n=2 over 5 but when I checked answer and substituted n for 2 over 5, i didnt get an equal answer Click here to see answer by Mathtut(3670)

 Question 164896: 5[x-(4x-5)]=3-2x Click here to see answer by edjones(7569)

 Question 164932: There wewe 723 babies born last december there were 215 more girls than boys. How many of each were born? Click here to see answer by checkley77(12569)

 Question 164933: The formaul for intrest is I=prt. If p=\$3500,t=2yrs, I=\$595, find R Click here to see answer by checkley77(12569)

 Question 164937: Solve for x. Collect xs on the LEFT side. The solution should be presented with x first, the correct inequality symbol, then the number. 2(x + 3) > 20 Click here to see answer by checkley77(12569)

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