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

Tutors Answer Your Questions about expressions (FREE)

Question 792467: Are these expressions equal? 8(9x-2) and 72x-2
Click here to see answer by psbhowmick(878)

Question 793131: How to solve this
9a+3+4a=51+5a
Click here to see answer by rfer(16322)

Question 793199: 3/4=w+2/5
Click here to see answer by stanbon(75887)

Question 793437: Hello can you help me solve and check this problem?
Click here to see answer by rothauserc(4718)

Question 793501: How do you use the distributive property with variables?
Click here to see answer by stanbon(75887)

Question 793517: How do you distribute variables like 3x+2(5x-7)
Click here to see answer by jim_thompson5910(35256)

Question 793679: Evaluate 2 1/4x for x=3/4

Click here to see answer by simplemathlover(3)

Question 794609: Hello! I need help with graphing quadratic functions with the quick draw method. What would be a way to solve ? Thanks!
Click here to see answer by Student789(6)

Question 794997: I need help in my homework
Click here to see answer by Alan3354(69443)

Question 795351: 4 less than triple B
Click here to see answer by tommyt3rd(5050)

Question 795507: There are x pupils in a class. The pupils arrange themselves into groups of 8. How many groups are there? Express the answer in terms of x.
Click here to see answer by Cromlix(4381)

Question 795729: Multiplying Rational Expressions: Please provide a complete solution.
1. 10x-4x^2/4x^20x+25 * (2x^3-5x^2)
Click here to see answer by KMST(5328)

Question 795799: x-3x+2x-6
Click here to see answer by Alan3354(69443)

Question 795863: What angle is one eighth its supplement?

Click here to see answer by rfer(16322)

Question 796604: Help we are stuck please help me I am a desp parent!!!!
Evaluate x. 1/5 for each value of x. write the answer in simplest form.

x=3/7 is one of her problems can you give me step by step how to do this so I can show her?
Click here to see answer by stanbon(75887)

Question 796702: evaluate the following 5^-1

Click here to see answer by luke94(89)

Question 798104: I have been asked to factor completely: 44b^2-108b-72
I tried it 2 ways and got 2 different answers. Which is correct?
First try
-72+ -108b=44b^2
4(-18= -27b+11b^2)
4((-6 + -11b)(3 + -1b))
4(-6 + -11b)(3 + -1b)
Second try
4((b-3)(11b+6))
4(b-3)(11b+6)
Click here to see answer by Alan3354(69443)

Question 798406: factor completely: 44b^2-108b-72 showing all work
Click here to see answer by Alan3354(69443)

Question 798553: can you please help me with 5=-1(2+6t)-t
i got up to 5=-2-6t-t
i just dont understand if you need to add the negative or subtract it so if you can please help thanks
Click here to see answer by Finavon(81)

Question 797906: 5-4(3.2x+2y)+3/4(6x+4y)
Where x=6and y= -4
Click here to see answer by tommyt3rd(5050)

Question 798762: how do I simplify 3x + (-8y) - 10x + 4x?
Click here to see answer by rfer(16322)

Question 799964: I have this math homework that is giving me a hell please help. I need to know which symbol goes inside the box.This is the math problem, 30 box 4 box (8box2)=6 . Please Please Please help.

Click here to see answer by jerryguo41(197)

Question 800416: i dont under stand this problom,
term #--1--2--3--4--5--6
term --1--9--17-26-35-41
i need the rule and the general rule, i dont get it. please help
Click here to see answer by stanbon(75887)

Question 800691: Show that 100-66*2/3=100/3
Click here to see answer by josgarithmetic(39621)

Question 800653: evaluate the expression 6-[3.5+2.(3-2)]
the answer im getting is -15
the answer the book has is -11
im trying to figure out how its -11
Click here to see answer by MathTherapy(10555)

Question 801245: how to solve -15 = 5b + 12 - 2b + 6

Click here to see answer by jim_thompson5910(35256)

Question 801586: How do I solve -4xy where x=1/2 and y=-3?
Click here to see answer by Alan3354(69443)

Question 801625: Please help!
The algebraic expression representing the words two times the height h is ___________? Thanks for your help
Click here to see answer by stanbon(75887)

Question 801648: u/11=9
Click here to see answer by jerryguo41(197)

Question 801633: u/11=9 show your work
Click here to see answer by edjones(8007)

Question 801643: z - 5 /3 = 12 3/4 show work
Click here to see answer by rfer(16322)

Question 803186: My brother is five years younger than me.Total of our ages is 27 years.How old am I ?
Click here to see answer by ortarico(23)

Question 803199: If:
x^2 + (1 / x^2) = 3
What is the value of:
x^4 + (1/x^4)
Please show work if possible. Thank you.
Click here to see answer by mananth(16946)

Question 803196: evalute the equation (p^3-8y^3) if-:
p-4y=2 & py=8
Click here to see answer by KMST(5328)

Question 804491: Multiply: (5-sqrt 3)(5+sqrt3)

Click here to see answer by erica65404(394)

Question 804491: Multiply: (5-sqrt 3)(5+sqrt3)

Click here to see answer by edjones(8007)

Question 804505: I need help????? plz plz plz

Click here to see answer by erica65404(394)

Question 804505: I need help????? plz plz plz

Click here to see answer by MathLover1(20850)

Question 805047: What is the answer to: x+2/6=x-1/12
Click here to see answer by richwmiller(17219)

Question 805214: 2/5=b(4/9)
how do I solve for b?
Click here to see answer by richwmiller(17219)

Question 805848: 2 x 7 - 3 = 18
5 x 6 / 13 - 10 = 3
where to put the brackets to make these statements true.
Click here to see answer by oscargut(2103)

Question 806855: What is the expression using the distributive property of 2(7b+3)=
Click here to see answer by erica65404(394)

Question 807298: How do you simply this problem: (18m/-4n)/(-1/4m)
I know the answer 18m2/n but can't figure out to get there. Thanks!
Click here to see answer by stanbon(75887)

Question 807318: Could you show me how to simply this expression: 5x/(2x/15)
I know the answer is 37.5 but I can't see how the variables would not be in the answer.
Thanks!
Click here to see answer by ankor@dixie-net.com(22740)

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