# 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 393433: two cars leave town at the same time going in opposite directions. one car travels 44mi/h and the other travels 55mi/h. in how many hours will they be 297 miles apart? Click here to see answer by rfer(12647)

 Question 393382: How do you combine like terms and then write them in a factored form for the equation 32+20x? Click here to see answer by Alan3354(30983)

 Question 393555: the 18th and 52nd terms of an arithmetic progression are 3 and 173 respectively. find 25th term Click here to see answer by robertb(4012)

 Question 393573: a canoeist Paddled For 4 Hours With A 6 Km/h Current To Reach A Campsite. The Return Trip Against The Current Took 10 Hours. Find The Speed Of The Boat In Still Water? Click here to see answer by mananth(12270)

 Question 393571: Paddled For 3 Hours With A 7 Km/h Current To Reach A Campsite. The Return Trip Against The Current Took 10 Hours. Find The Speed Of The Boat In Still Water? Click here to see answer by mananth(12270)

 Question 393719: Solve equation... x+7=10 x+14=25 x-2= -4 3+x= -11 1/3+f=3/4 Click here to see answer by ewatrrr(10682)

 Question 393933: john pays \$650 in property tax. what is the assessed value of his property if property taxes are 1.2% assessed value. please break it down. Click here to see answer by rfer(12647)

 Question 393924: How long will lucy have to wait before for her 2,500 invested at 6% earns \$600 in simple interest? Click here to see answer by rfer(12647)

 Question 394237: There are 8oz in a 1/2 pound. how many oz.in 7 3/4 pounds? Click here to see answer by Alan3354(30983)

 Question 394167: Graph the inequality 3x <= –4y – 4. Click here to see answer by ewatrrr(10682)

 Question 394307: how do you solve x=2y+2 2x+3y=11 using substitution Click here to see answer by MathLover1(6622)
 Question 394307: how do you solve x=2y+2 2x+3y=11 using substitution Click here to see answer by ewatrrr(10682)

 Question 394309: how do you solve y=-x+4 y=2x+6 using substitution? Click here to see answer by TeishaRenee(14)
 Question 394309: how do you solve y=-x+4 y=2x+6 using substitution? Click here to see answer by ewatrrr(10682)
 Question 394309: how do you solve y=-x+4 y=2x+6 using substitution? Click here to see answer by richard1234(5390)

 Question 394304: how do you solve y=3x y=x-4 using substitution Click here to see answer by TeishaRenee(14)
 Question 394304: how do you solve y=3x y=x-4 using substitution Click here to see answer by richard1234(5390)
 Question 394304: how do you solve y=3x y=x-4 using substitution Click here to see answer by Alan3354(30983)

 Question 394305: how do you solve y=2x-9 x+3y=8 using substitution? Click here to see answer by ewatrrr(10682)

 Question 394343: Can you please help me with this equation 2b^2+9=0 What I come up with is 2b^2 = -9 but am not sure where to go from here. I appreciate any help you may be able to give me. Thank you. Click here to see answer by solver91311(16868)

 Question 394345: Can you please assist me with this equation 14/x^2 + 1/x-1 = 3/x+1 I believe you would mulpliply both sides by x +1 but am not sure exactly where I am going with this. I would appreciate any help you can give me. Thank you. Click here to see answer by solver91311(16868)

 Question 394460: If you are using substitution or elimination, if the answer is 18x=9 what is x Click here to see answer by richard1234(5390)
 Question 394460: If you are using substitution or elimination, if the answer is 18x=9 what is x Click here to see answer by mananth(12270)

 Question 394340: I am having trouble trying to factor the equation 3x^2+2x+2=0 I have tried various solutions, but keep coming up with no answers that will factor. Can you please assist me?? Click here to see answer by ankor@dixie-net.com(15638)
 Question 394340: I am having trouble trying to factor the equation 3x^2+2x+2=0 I have tried various solutions, but keep coming up with no answers that will factor. Can you please assist me?? Click here to see answer by richard1234(5390)

 Question 394547: Please simplyfy this equation -3 + 18 x 2- (40 + 43 x 2) Click here to see answer by EricL(29)

 Question 394800: 86,000 = 210.21x + 154.24y solve for x and y Click here to see answer by stanbon(57246)

 Question 394993: Integers. How do I find the sume of 3 consecutive integers if the last integer is Z? Click here to see answer by ewatrrr(10682)

 Question 395133: a real estate broker's base annual salary is 18,000. she earn 3% commission on total sales. how much must she sell in real estate value during the year to earn 65,000? round final answer to the nearest dollar. Click here to see answer by rfer(12647)
 Question 395133: a real estate broker's base annual salary is 18,000. she earn 3% commission on total sales. how much must she sell in real estate value during the year to earn 65,000? round final answer to the nearest dollar. Click here to see answer by stanbon(57246)

 Question 395373: I asked this question before but I'm confused: Solve the expression: (4sqrt(x) + 4sqrt(y)) * (4sqrt(x) - 4sqrt(y)) Click here to see answer by MathLover1(6622)

 Question 395375: The expression: (x^2) (1/9x^3) (63x^-11) equals c/x^e where the coefficient c = ? and the coefficient e = ? I see how to get the c which is 7, but I can't get e. Please help!!!! Click here to see answer by jim_thompson5910(28504)

 Question 395634: sove by substitution. indicate whether the system is independent, dependent or inconsistent. 2x - 3y = 12 3y - 2x = -12 Click here to see answer by ewatrrr(10682)
 Question 395634: sove by substitution. indicate whether the system is independent, dependent or inconsistent. 2x - 3y = 12 3y - 2x = -12 Click here to see answer by stanbon(57246)

 Question 395633: solve by the method of your choice. -x + y =1 2x - 3y = -7 Click here to see answer by ewatrrr(10682)
 Question 395633: solve by the method of your choice. -x + y =1 2x - 3y = -7 Click here to see answer by mananth(12270)

 Question 395631: solve by addition. Indicate whether each system is independent, dependent or inconsistent. -3x + 1y = 3 2x - 3y 5 Click here to see answer by ewatrrr(10682)
 Question 395631: solve by addition. Indicate whether each system is independent, dependent or inconsistent. -3x + 1y = 3 2x - 3y 5 Click here to see answer by stanbon(57246)
 Question 395631: solve by addition. Indicate whether each system is independent, dependent or inconsistent. -3x + 1y = 3 2x - 3y 5 Click here to see answer by mananth(12270)

 Question 395629: Solve by substitution. x + 2y = 1 4x + 8y = -5 Click here to see answer by ewatrrr(10682)

 Question 395720: Write the expression for the cube of the difference of a number and 43. Click here to see answer by ewatrrr(10682)
 Question 395720: Write the expression for the cube of the difference of a number and 43. Click here to see answer by MathLover1(6622)