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

Tutors Answer Your Questions about expressions (FREE)

Question 14828: Three more than four times some number write an algebraic expression
Click here to see answer by pwac(253)

Question 15058: CAN SOMEONE FIND The answer to 6y-(3y+9)=17
Click here to see answer by rapaljer(4671)

Question 13906: (-x^2 - 3x) + (6x^2 - 3)
Click here to see answer by rahman(247)

Question 15115: -10x+3 This question is negative ten plus three over
______ five. How can simplify this expression?
5
Click here to see answer by jb007mi6(53)

Question 15500: Having hard time understanding the process used to solve this problem. I dont have any issues with 2 (x-1)(2x+3) but 3 is throwing me off.... any help would be appreciated...
(x-1)(2x+3)(3x-2)

Click here to see answer by smik(40)

Question 16203: I'm confused. How do i simplify (16 + 3y) + y
Is the answer 16 + 4y or 20y
Thanks
Click here to see answer by elima(1433)

Question 13075: what do i do to disstrebuet a neg like 7x-2(x-4y)what do i do for frac x frac
Click here to see answer by amanda(2)

Question 16439: (2t+4)3+6(-5t)-(-8)
Click here to see answer by tjnw79(57)

Question 16538: The question is to simplify:
2(7--4) + 5(2-5) divided by (-4)(6-2) This is in fraction form.
I keep coming up with the solution - 7/16, but the Universal Simplifier arrives at 37!
Here's how I arrived at -7/16:
2(11) + 5 (-3) or 22+-15 = 7
-4(4) = 16
so solution is -7/16
Please help me to understand what I am doing incorrectly, I will forever be indebted to whomever answers this!
Click here to see answer by rapaljer(4671)

Question 15964: [(5n-4)+(3n-7n)]-1
Click here to see answer by xcentaur(357)

Question 15822: I want to convert a/(x+y) to something of the form (b/x + c/y).
Click here to see answer by xcentaur(357)

Question 15256: What is the constant in this expression? {88/m=8} ( / is division)
Click here to see answer by xcentaur(357)

Question 8361: Please help me solve: x + 2/3x + x/3
Click here to see answer by xcentaur(357)

Question 9072: Hi, I've been trying for hours to figure out how to isolate y in the following equation.
y(y-5)=546
I know y=26 but how do I prove/solve it? (I've come up with numerous variations to the equation such as: 8y-40=4368/y, (8y-40)y=4368, y^2-5y=546, etc). Thanks in advance for your help.
Peter
Click here to see answer by xcentaur(357)

Question 17090: My teacher told me to write expressions that equal all of the numbers from 1 to 100 using only the digits 2006.
Click here to see answer by luvfamily1(5)

Question 17668: 21 X 2 - 54 / 9
The agruement is the order in which the expression is calculated.
Click here to see answer by mmm4444bot(95)

Question 17928: Evaluate if a=3and b=5
37+a
Click here to see answer by ivy12003(22)

Question 17932: is 1 a solution of x^2-7x-8=0
Click here to see answer by whisper(27)

Question 17930: 2ab^2-3ab when a=1 and b=-3 how do you solve this problem
Click here to see answer by whisper(27)

Question 18737: How do I solve this problem 4(x-6)-7((x-2)=17
Click here to see answer by pwac(253)

Question 18737: How do I solve this problem 4(x-6)-7((x-2)=17
Click here to see answer by Alwayscheerful(414)

Question 18486: My questions are. How do you write an expression for.
1.)nince less than twice a number equals the same number increased by four.
2.)six less than five times a number is twenty-nine.
It has been a very long time since I have been in school& trying to figure out how to write expressions is very confusing to me.
Thanks!
Click here to see answer by piglet162431(90)

Question 18858: Hello:
This is my first time here, and I am new to this. I am trying to prepare for a college entrance exam. (the math portion consists of pre-algebra and algebra.) Being that I Flunked out of both courses in high school, I am scared to death. This all seems so simple, yet I just do not comprehend. I am working with my husband who is an accountant and we have been able to figure out a few of the problems. But this is one we cant. I do not remember how to multiply or divide fractions. Thank you for ANY help on this.
Problem:
1/2 + (2/3 divided 3/4)-(4/5 x 5/6) = ?
Click here to see answer by xcentaur(357)

Question 19119: Solve algebraically for the variable:
x + 2 = 4 (3x -2)
I got this:
x + 2 = 12x - 8
2= 11x - 8
10 = 11x
10/11 = x <-------- answer
Is this correct?
Click here to see answer by Alwayscheerful(414)

Question 19112: Evaluate the algebraic expression:
10 + 3x / (2 + 2x) when x = 5
Click here to see answer by Alwayscheerful(414)

Question 19114: Use the distributive property to rewrite the expression without parentheses:
3 (-5s - 2)
My answer was -15s - 6
My college tutor came up with 3(-5s) - 3(2) .. but I don't get that, because thee are still parenthesis.
Is my answer correct?
Click here to see answer by Alwayscheerful(414)

Question 19267: 8-1.2y=2
Click here to see answer by Alwayscheerful(414)

Question 19420: Evaluate the variable_expression xyz for the given values or x, y, and z. x=4, y=0/8, and z=1 5/9.
Click here to see answer by xcentaur(357)

Question 19542: Write an expression for the pattern
50+1, 50+2, 50+3, .....
Click here to see answer by MelanieBCC(40)

Question 21032: a=2h(l+w)...how do i work this?
Click here to see answer by Here2Help(19)

Question 21135: I have an algebra expression that I am not getting a whole number answer for. I got this:
3b+2=6(3-b)
3b+2=18-6b
9b+2=18
9b=16
b=1 7/9
Is this correct? Please help!!!
Click here to see answer by wuwei96815(245)

Question 21186: Solve for what z equals.
5xZ+3=Z+4x5-1

Please help it seems impossible to me
Click here to see answer by longjonsilver(2297)

Question 21520: Pretty please help
faCTOR
15+3Y-15X^2-X^2Y
Click here to see answer by Earlsdon(6294)

Question 22318: The equation below is for short-run equilibrium output for economics, I get how to solve for the first part of the equation and I come up with 3.33, I just don't get the second part of the equation, the 1800, when entering the formula with parenthesis, I come up with (-580)
Y=(1/(1-0.7)[820-0.7(600+600+600+200)]= 3.33 x 1,800=6,000
Click here to see answer by stanbon(75887)

Question 22568: A famous mathematician of the 1800's once said: "I was x years old in the year x squared." In what year did the mathematician say this, and what year was he born?
Click here to see answer by stanbon(75887)

Question 23058: I need step-by-step help on solving problems such as the following.
(x^3-6x^2+7x-2) / (x-1)
Click here to see answer by rapaljer(4671)

Question 21828: IF 5X10n=0.0005THENn=?
Click here to see answer by rapaljer(4671)

Question 23401: Kyle had 36 books in his locker. Some were library books and the rest were telephone books. the number of library books and telephone books combined is equal to twice the number of textbooks. the number of textbooks and telephone books combined is equal to 3 times the number of library books. how many of each type of book were in Kyle's locker?
Click here to see answer by stanbon(75887)

Question 23537: Please simplify (5a^2 + 2a)(6m^2)
Click here to see answer by rapaljer(4671)

Question 23667: what does "for" stand for in a question? is it a division term or a multipulcation term please tell me i need to finish my homework!!!
Click here to see answer by rapaljer(4671)

Question 23658: Write an expression for the number of hours in an unknown number of seconds
Click here to see answer by rapaljer(4671)

Question 23650: i dun get how u take the numbers out of the parentheses!
such as:
(2a+b)2 (squared) =...what

Click here to see answer by rapaljer(4671)

Question 23657: please help me 1/4 (9-2z) = -5
-8 = 4/5 k
3/4 - 1/3z = 1/4
Click here to see answer by stanbon(75887)

Question 23726: 7-(7+3/4-2)+(-4)-8+4-(24)
5/9+8(4(3)+9)7/8
help solving i get confiused
Click here to see answer by AnlytcPhil(1807)

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