Questions on Algebra: Evaluation of expressions, parentheses answered by real tutors!

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Question 452312: Solve the equation. If it is an identity (all real numbers) or a contradiction (no solution), so state.
4x + 3 + 3x = 8x + 3 – x

Click here to see answer by Gogonati(855) About Me 

Question 452449: Please help. (:
let f(x)=1-x^2 , g(x) 1-x. Find (f-g)(x)

Click here to see answer by stanbon(75887) About Me 

Question 452716: Factor x^2+6x+9
Click here to see answer by jim_thompson5910(35256) About Me 

Question 453905: (xsquare-144) = (x+12) (?)
Click here to see answer by algebrahouse.com(1659) About Me 

Question 454331: -7-{(7-4)-(-6-4)} simplfy expression
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Question 454621: is 28/9 in simplify

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Question 455278: Evaluate (4x+4)(7x-3)
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Question 456139: Obtain the general solution
y lnx lny dx + dy = 0

Click here to see answer by robertb(5830) About Me 

Question 456138: Obtain the general solution
dr = b(cosx dr + rsinx dx)
ANSWER: r= c(1 - bcosx)

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Question 456384: Please HELP, how do you solve the following problem:
-3 + ((5(8-6))/2+45)/5

Click here to see answer by richwmiller(17219) About Me 

Question 456700: Please answer this question.
Find b: 5a/c - y - d/b = z
or in other words.... 5a over c minus y minus d over b equals z.
I hope this is not confusing..
Thanks again.

Click here to see answer by ankor@dixie-net.com(22740) About Me 

Question 457093: what is the answer to 5+7x=11+9x could you show me through it?
Click here to see answer by algebrahouse.com(1659) About Me 

Question 457451: If 7 more than 3x a number is added to a diffrence of 5x a number and 10 the resust is 3o find the number. Hi I am trying to help my daugghter and I need help. #2 how much of a 50 % acid Solution should be combined with 10% acid solution to make 200 ounces of a 40% solution. #3 twice the diffece of a number and eight is equal to three times the sum of the number and 3. Find the number. If you can show the work so I will be able to learn as well as show my child. Thank you. marjorygregory@gmail.com
Click here to see answer by stanbon(75887) About Me 

Question 458029: subtract 5x^2-9 from 7x^2-x+1
Click here to see answer by poliphob3.14(115) About Me 

Question 458238: a=(a+b+c)/3
for c

Click here to see answer by Alan3354(69443) About Me 

Question 458301: Hi I submitted questions but I never recived a confirmation e mail so I will re submit. I am having trouble with a few problems I do not know if I am setting them up the right way. # a number increased by two -third is 35 find the number. # 2 twice the diffrence of a number and 8 is equal to three times the sum of the number and 3. Find the number
Click here to see answer by mananth(16946) About Me 

Question 458319: I have the answer to this. Division of polynomial but I think I am messing up the steps. (#1)1-3x^2/x+2 answer -3x+6-11/x+2. (#2) the product of twice a number and three is the same as the diffrence of five times the number and 3/4. Find the number. (#3). Solution or equation, I have the answer need help setting it up. x-3/7=-2: -11 thank you very much. A greatful mom.
Click here to see answer by Edwin McCravy(20060) About Me 

Question 458356: ∫a^2 dx
(given log 10^2 = 0.3010)

Click here to see answer by Alan3354(69443) About Me 
Question 458356: ∫a^2 dx
(given log 10^2 = 0.3010)

Click here to see answer by richard1234(7193) About Me 

Question 459322: Determine whether the statement is true, false, or sometimes true.
If x is positive and y = -x,
then xy2 is positive.
I believe it is false but I want to make sure
Thank you :)

Click here to see answer by edjones(8007) About Me 

Question 459315: Compute the value of the given expression.│4│
I think the answer is -4 but I am not sure if that is correct.
thank you :)

Click here to see answer by richard1234(7193) About Me 

Question 459435: 1 − 5 [ (4 − 7) − (3 + 4) ] + 6 need help to solve thank you

Click here to see answer by edjones(8007) About Me 

Question 459719: g(x)=5^x;find g(-2)
Click here to see answer by poliphob3.14(115) About Me 

Question 460110: 3x^2 + 4y^2 - ( 5x^2 - 7y^2 - 1)
how do I solve this? I am way lost!

Click here to see answer by jim_thompson5910(35256) About Me 

Question 460494: 6(r - 1) + 5(r + 4)
Click here to see answer by rfer(16322) About Me 

Question 460622: 0.4p+0.2=4.2-7.8-0.6p

Click here to see answer by rfer(16322) About Me 

Question 460865: Find a number which decreased by 18 is 5 times its opposite.
Click here to see answer by poliphob3.14(115) About Me 
Question 460865: Find a number which decreased by 18 is 5 times its opposite.
Click here to see answer by stanbon(75887) About Me 

Question 460935: Find the domain of the function, I just do not get it!
g(x)=6/2-5x

Click here to see answer by JimboP1977(311) About Me 

Question 460946: the sum of digits of a two digit number is 15.if the number form by reversing the digits is less than the original number by 27.find the original number.

Click here to see answer by sudhanshu_kmr(1152) About Me 

Question 462116: subtract (x^2+5x-2)-(x^2-3x+5)
Click here to see answer by MathLover1(20850) About Me 
Question 462116: subtract (x^2+5x-2)-(x^2-3x+5)
Click here to see answer by solver91311(24713) About Me 

Question 462318: I would like to submit a question on how to simplify an expression but I dont have any idea of how to write it via the computer.
Click here to see answer by rfer(16322) About Me 

Question 462601: I need help someone please! 8[23-(-16-10)] please help someone!
Click here to see answer by rfer(16322) About Me 

Question 463002: 5(15-x)=7(9x+1)
Click here to see answer by rfer(16322) About Me 

Question 464161: Factor.
2x^2-11x-6

Click here to see answer by ewatrrr(24785) About Me 

Question 464644: -(b+33)=
Click here to see answer by MathLover1(20850) About Me 

Question 464660: Need help with two step algebra problems. -2X- 3 over = 117over5 not sure where 2 start thnk you 4 your time
Click here to see answer by Alan3354(69443) About Me 

Question 465013: Rewrite without parentheses and simplify
(2x-4)^2

Click here to see answer by jorel1380(3719) About Me 
Question 465013: Rewrite without parentheses and simplify
(2x-4)^2

Click here to see answer by stanbon(75887) About Me 

Question 465176: the length of the rectangle is 3 meters more than its width.If the perimeter is 54 meters,what are its dimensions?

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Question 465173: the length of the rectangle is 3 meters more than its width.If the perimeter is 54 meters,what are its dimensions?

Click here to see answer by stanbon(75887) About Me 

Question 464926: Solve -3(x-b)-(3a-2x)=a+b for x
Click here to see answer by sofiyac(983) About Me 

Question 464858: (x-5)Divide x^2-11x+30*(x-6)
__________
x^2+7x+12
Multiplying rational expressions simplify results

Click here to see answer by sofiyac(983) About Me 

Question 466317: Evaluate 12 over 11 *5 over 8 * (-2 over 9) what is easiet way to solve

Click here to see answer by richard1234(7193) About Me 

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840