# Questions on Algebra: Equations answered by real tutors!

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 Algebra: Equations Solvers Lessons Answers archive Quiz In Depth

 Question 170369: simultaneous equations 2x-4y=8 x-2y=4 Click here to see answer by checkley77(12569)

 Question 170491: how exactly do I graph an inequality?For example y<3x+1? Click here to see answer by stanbon(57347)

 Question 170531: I am not a student, just doing some practice math for an engineering tech asst position at my current employer. I haven't been to school in 11 years and am just trying to refresh my memory. The problem I got stummped on is below: 4x-7=x/2 I've tried to mulitply/divide/add/subtract and somewhere I am getting all jumbled up. If you solve it could you please show me the steps taken. I am missing something due to there being a variable on both sides of the equation. Thanks so much Angel Click here to see answer by scott8148(6628)

 Question 170634: Solve the following equation: 4x-5=2x+5 HELP!!!! Thanks so much in advance!! Click here to see answer by jim_thompson5910(28595)

 Question 170707: Write in scientific notation. (6.2 x 10^-5)(3 x 10^3) ________________________ 2 x 10^4 I'm sure you already know, but ^ with the number to the right, is an exponent. Thanks for any help you can give me. I'm lost. Click here to see answer by stanbon(57347)

 Question 170722: My questions are...what are the multiplicative inverse of these numbers: 3/7 -4/11 7/2 9/5 -5 6 1/3 4 1/9 17 1/2 -15 2/3 Click here to see answer by jim_thompson5910(28595)

 Question 170740: Integer subtraction: 12-(-11) =? -30 - 27 =? Click here to see answer by Mathtut(3670)

 Question 170739: fill in the blank: 5/9= ?/54 Click here to see answer by checkley77(12569)

 Question 170781: Hi I need help with my math homework. I'm having trouble on this equation. Please help Solve for d 13d-53=9d+19 Thanks -Julie Click here to see answer by nerdybill(6958)

 Question 170745: 24 inch wire, cut into 2 piece, twice the length of shorter piece is equal to the length of the longer piece, what is the length of the longer piece? Click here to see answer by checkley77(12569)

 Question 170816: 14=5k-31 Click here to see answer by Alan3354(30993)

 Question 170836: The hockey team played 12 games this year. They lost one more than they tied. They won two more than they lost. How many games won, lost and tied? Click here to see answer by stanbon(57347)

 Question 170834: What number must you add to 128 and subtract from 256 so that the answers to both examples are equal? Please help me Click here to see answer by jim_thompson5910(28595)

 Question 170837: Tina, Dawn and Harry raised \$175 total for their class trip. Tina raised three times as much as Dawn. Dawn raised twice as much as Harry. How much did each raise? Click here to see answer by Mathtut(3670)

 Question 170856: In 1945, when the United Nations was formed, there were 51 member nations. In 1987, there were 159 member nations. Write an equation that gives the number of nations in the UN, y, in terms of the year, t. Let t=0 correspond to 1945 and assume that membership followed a linear pattern. Do I start by making two points? (51,0) (159,42) ?? Help Click here to see answer by jim_thompson5910(28595)

 Question 170936: simultaneous equations x-y=4 2x+y=5 Click here to see answer by checkley77(12569)

 Question 170937: simultaneous equations 3x-5y=1 10y=6x-1 Click here to see answer by stanbon(57347)

 Question 170935: simultaneous equations y=2x+1 x+y=4 Click here to see answer by Mathtut(3670)

 Question 170997: HOW WOULD I SOVLE THIS PROBLEM 2x+3=4 Click here to see answer by Mathtut(3670)
 Question 170997: HOW WOULD I SOVLE THIS PROBLEM 2x+3=4 Click here to see answer by jojo14344(1512)

 Question 170994: 5/8(p-4)=2 Click here to see answer by Mathtut(3670)

 Question 171047: Please help me solve this calculate the slope of the line passing through each pair of points. Then tell whether the line rises, falls, is horizontal, or is vertical? (3,5) and (9,15) slope=________,_________ Click here to see answer by Alan3354(30993)

 Question 171044: Solve using either substitution or addition method. Tell which method was used? 3y=x+5 -3x+8y=8 Click here to see answer by checkley77(12569)

 Question 171085: Expand (what does expand mean in relation to the below problem?) Click here to see answer by Alan3354(30993)

 Question 171146: A=bh solve for b Click here to see answer by jojo14344(1512)

 Question 171172: Michael spent 20% of his money and then gave 60% of what he had left to her sister. He then had only \$32 left, How much money did he had at first? Click here to see answer by stanbon(57347)

 Question 171199: My niece needs help. I tried to solve it but I don`t think I got it correctly. This is equations & inequalities. 12.6x/6-2y ≤.4y This is what I did:\ 12.6x/6-2y-.4y=0 12.6x/6-2.4y=0 12.6x-2.4y=6 we`re supposed to solve x & y,right? can we substitute any number we want for x or y to solve one of them? Click here to see answer by scott8148(6628)
 Question 171199: My niece needs help. I tried to solve it but I don`t think I got it correctly. This is equations & inequalities. 12.6x/6-2y ≤.4y This is what I did:\ 12.6x/6-2y-.4y=0 12.6x/6-2.4y=0 12.6x-2.4y=6 we`re supposed to solve x & y,right? can we substitute any number we want for x or y to solve one of them? Click here to see answer by stanbon(57347)

 Question 171327: About two twenty fifth of the male population in the world cannot distinguish red from green. If there are fourteen boys in the ninth grade that cannot distinguish red from green, about how many ninth grade boys are there in all. write and solve an equation to find the answer. Click here to see answer by Mathtut(3670)

 Question 171331: I've asked for help several times and have not gotten a response, is there any specific reason why my questions are being ignored. Write an equation fo the line passing through the given points. (3,-12) and (-4,2) Can someone be generous enough to help me Click here to see answer by Edwin McCravy(8909)
 Question 171331: I've asked for help several times and have not gotten a response, is there any specific reason why my questions are being ignored. Write an equation fo the line passing through the given points. (3,-12) and (-4,2) Can someone be generous enough to help me Click here to see answer by Alan3354(30993)
 Question 171331: I've asked for help several times and have not gotten a response, is there any specific reason why my questions are being ignored. Write an equation fo the line passing through the given points. (3,-12) and (-4,2) Can someone be generous enough to help me Click here to see answer by gonzo(654)

 Question 171349: Give me an equation where there is a variable that is unknown so i can study! PLEASE!!! Click here to see answer by stanbon(57347)

 Question 171352: 5)3(x+4)=2(x+6)+x what is the solution set? 10)2|4t-5|+|4t-5|=45 what does t equal? 11)(t+3)^2+12=98 what does t equal? 12)5y^2+19y-45=5y(y+2) what does y equal? and then problems 14, 15, and 16 that are also on page 196 in the chapter 4 chapter test. we have a test tommorrow and i wanna make sure my answers are right. thank you so much. Click here to see answer by jim_thompson5910(28595)

 Question 171364: I need the answers to this problems: 1. 2 1/4 = b - 1 2/3 what is "b" Click here to see answer by stanbon(57347)
 Question 171364: I need the answers to this problems: 1. 2 1/4 = b - 1 2/3 what is "b" Click here to see answer by jim_thompson5910(28595)

 Question 171373: x-8/x^2-x Is the answer -8/x^2? Click here to see answer by stanbon(57347)

 Question 171375: Determine the restricted value(s) x^2-4x-21/x^2+16 Please help me work threw this. Thanks Click here to see answer by stanbon(57347)

 Question 171378: Simplify 9x^2+6x/12x How do I go about solving this equation? Click here to see answer by stanbon(57347)
 Question 171378: Simplify 9x^2+6x/12x How do I go about solving this equation? Click here to see answer by jim_thompson5910(28595)
 Question 171378: Simplify 9x^2+6x/12x How do I go about solving this equation? Click here to see answer by gonzo(654)

 Question 171454: Solve: 3*6+12/4-2 Click here to see answer by nerdybill(6958)