Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 763452: Simplify using the order of operations.
3[6 − 2(3 − 5)]
Click here to see answer by Alan3354(69443)

Question 763492: How to find the sum of 4^3^4+2^5^6
Click here to see answer by Alan3354(69443)

Question 763629: if (1-2-3-4)w=(-1)(-2)(-3)(-4), then w=
(A) -3
(B) -2
(c) -1
(D) 2
(e) 3
Click here to see answer by ramkikk66(644)

Question 763638: What is the answer to 4b-1/7=5/7?
Click here to see answer by candicem(3)

Question 763687: Okay, so the problem is (x+2)^2=-7
I simplified it to (x+2)(x+2)=-7. And then I did, x^2+4x+4=-7. I added the negative 7 to the 4 making the problem x^2+4x+11=0 and then that's when I tried to use the quadratic formula but it comes out as -4 +over- radical -28 all over 2. Help me please!!!!!!!!
Click here to see answer by josgarithmetic(39616)

Question 763715: 9b+8=8
Click here to see answer by jim_thompson5910(35256)

Question 763820: x^11y^7=x^3y
Click here to see answer by Alan3354(69443)

Question 763803: The profit, P, of a video company in thousands of dollars, is given by
P = -5x^2 + 550x -5000, where x is the amount spent on advertising in thousands of dollars.

Determine the amount spent on advertising that will result in a profit of $0.In other words, you will determine the amount that must be spent on advertising in order for the company to � break even.�
Click here to see answer by ramkikk66(644)

Question 763837: 2(x+5)-7=3(x-2)
Click here to see answer by jim_thompson5910(35256)

Question 763814: How do I evaluate this equation? -50+(-7/9)+35+(-11/9)=
Click here to see answer by tommyt3rd(5050)

Question 763873: be able to use elementary calculus techniques
differentiate the following fuctions with respect to 'x'

y = x^4 + 5x^3 - 4x^2 + 7x - 2

Click here to see answer by fcabanski(1391)

Question 763955: x-intercept of a(3,5) and b(-2,-3)
Click here to see answer by stanbon(75887)

Question 763951: If Tom can do a job in 2 hours and Jerry can do the same job in 3 hours, how long will it take them to do the job together?
The answer is less than 1.5, however, you can't combine the times and average, would it make more sense to convert them into fractions?
Please help? Hate word problems, and it's been 36 years since I've taken an algebra course.
Click here to see answer by josmiceli(19441)

Question 763994: 3(y-4)=-2(y+6)
Click here to see answer by jim_thompson5910(35256)

Question 763992: -0.71-0.22n=1.29+0.78n
Click here to see answer by jim_thompson5910(35256)

Question 764029: por q esta ecuacion 2x+8=-2x-6
Click here to see answer by stanbon(75887)

Question 764023: How do I solve by factoring
Click here to see answer by Alan3354(69443)

Question 764156: 9 + 8a + 5a =
Click here to see answer by lenny460(1073)

Question 764236: 8(x-3)-(6-2x)=2(x+2)-5(5-x)

Click here to see answer by Cromlix(4381)

Question 764305: In Savannah, Georgia, the retail gasoline market consists of 8 firms. Firm 1 has 30% of the market, Firms 2 and 3 have 20% each and the remaining firms have 6% each. What is the four-firm market concentration ratio for this industry?
Click here to see answer by solver91311(24713)

Question 764318: if you have the equation ;
9x+9=4x+39
what does the 'x' equal too?
Click here to see answer by stanbon(75887)

Question 764432: If a ≠ b and 1/x + 1/a = 1/b, then x = ?

Click here to see answer by josgarithmetic(39616)

Question 763917: 12*8+(x+8)=9x
Click here to see answer by tommyt3rd(5050)

Question 764403:
Click here to see answer by ssasr(5)

Question 764551: Evaluate: 5(6 -3) - 1 * 6
Can you help me solve this if you can and explain it? I don't get it
Click here to see answer by rothauserc(4718)

Question 764566: Please help me!
Solve for r: A= 2*pi*r*h
Click here to see answer by MathLover1(20849)

Question 764534: How to solve 8y-7=3y+13
Click here to see answer by tommyt3rd(5050)

Question 764563: Help me with this problem please:
3/5x= 2/3x+1
Click here to see answer by stanbon(75887)

Question 764561: I need help with this problem please:
1/2x-2/3= 4x
Click here to see answer by stanbon(75887)

Question 764560: Please help me with this problem:
3/4x+1= 4
Click here to see answer by rothauserc(4718)

Question 764559: Help me please:
6n= 2/3(5n-2)
Click here to see answer by rothauserc(4718)

Question 764557: Please help me:
1/3x-9= 2(x-5)
Click here to see answer by rothauserc(4718)

Question 764665: Plz tell me the steps of
5% of 350 is equal to a
Plz plz
Click here to see answer by Menjax(62)

Question 764604: Part 1: For the following system of equations, write your own real world scenario that describes what is happening. Use complete sentences and correct grammar in your scenario.
Part 2:
Solve the system and explain what the results mean according to your scenario.
2x + y = 11
3x + 4y = 24

Click here to see answer by lenny460(1073)

Question 699599: Four farmers harvested pineapples. Andrea awoke from a nap and ate 1/3 of the pineapples. Brian awoke and ate 1/3 of the remaining pineapples. Cora awoke and ate 1/3 of the remaining pineapples. David awoke and found that there were 8 pineapples left. How many pineapples did the group harvest?
Click here to see answer by tommyt3rd(5050)

Question 764703: rounding off 11.8 to the nearest ten cents??

Click here to see answer by stanbon(75887)

Question 764732: Solving the square:
x^2+2x=48
I believe you add + 1 to both sides so x^2+2X+1=48+1 then I think you add the 48+1 to make 49. I am not sure where to go from there. Thank you for your help.
Click here to see answer by Cromlix(4381)

Question 764761: 5√2(3√8+5√108)+√9600
How do I figure this out? Thank you very much.
Click here to see answer by MathLover1(20849)

Question 764756: How to solve these in Trial and Error :-
6p2 + 7p � 20
4a2-7a+3
4m2+8m+3
6p2+7p-20
Click here to see answer by Cromlix(4381)

Question 764796: 2(w-8) - 5 (w + 4) = 7 - 3w
Click here to see answer by rfer(16322)

Question 764810: need help solving
-16 +6(z-2) = 2(z-8) + 4z -12
Click here to see answer by Alan3354(69443)

Question 764810: need help solving
-16 +6(z-2) = 2(z-8) + 4z -12
Click here to see answer by tommyt3rd(5050)

Question 764811: need help solving this problem
p - 0.5 = 10
Click here to see answer by Alan3354(69443)

Question 764798: Simplify x^4-5x^2+4
Click here to see answer by Alan3354(69443)

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36721..36765, 36766..36810, 36811..36855, 36856..36900, 36901..36945, 36946..36990, 36991..37035, 37036..37080, 37081..37125, 37126..37170, 37171..37215, 37216..37260, 37261..37305, 37306..37350, 37351..37395, 37396..37440, 37441..37485, 37486..37530, 37531..37575, 37576..37620, 37621..37665, 37666..37710, 37711..37755, 37756..37800, 37801..37845, 37846..37890, 37891..37935, 37936..37980, 37981..38025, 38026..38070, 38071..38115, 38116..38160, 38161..38205, 38206..38250, 38251..38295, 38296..38340, 38341..38385, 38386..38430, 38431..38475, 38476..38520, 38521..38565, 38566..38610, 38611..38655, 38656..38700, 38701..38745, 38746..38790, 38791..38835, 38836..38880, 38881..38925, 38926..38970, 38971..39015, 39016..39060, 39061..39105, 39106..39150, 39151..39195, 39196..39240, 39241..39285, 39286..39330, 39331..39375, 39376..39420, 39421..39465, 39466..39510, 39511..39555, 39556..39600, 39601..39645, 39646..39690, 39691..39735, 39736..39780, 39781..39825, 39826..39870, 39871..39915, 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