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

Algebra ->  Expressions -> Questions on Algebra: Evaluation of expressions, parentheses answered by real tutors!      Log On


   



Tutors Answer Your Questions about expressions (FREE)


Question 347143: Pls help me solve this equation
Suppose that 4x2+5y=7xy-6
Express y in terms of x.

Click here to see answer by Fombitz(32388) About Me 

Question 347149: please could you help with rearranging this equation.....
x=7+8y / 7+8y Express y in terms of x. thank you!!!!

Click here to see answer by CharlesG2(834) About Me 

Question 347346: what is twice the sum of k and 4

Click here to see answer by nyc_function(2741) About Me 

Question 347714: Showing my work, how do I place the following set of numbers in ascending order?
-2/5, 1/16, 7/8, -5/19, 13/4

Click here to see answer by ovie27(16) About Me 

Question 347720: Showing my work and rounding to the nearest whole number, how do I evaluate
280ft/1s x 1mi/5280ft x 3600s/1hr ?

Click here to see answer by josmiceli(19441) About Me 

Question 347713: How do you evaluate -6.9-(-7.7)+25?
Click here to see answer by nyc_function(2741) About Me 

Question 347730: -7yt/3x = ?/18xyt build each rational expression into an equivalent rational expression with the indication denominator.
Thank you so much

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

Question 347732: Find the LCD for the given rational expressions, and convert each rational expression into an equivalent rational express with the same LCD as the denominator.
(4)/(x-y)
(5x)/(2y-2x)
Thank you

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

Question 347724: Showing my work, how do I evaluate
-23-(-24)/-11-(-17) + |-22|

Click here to see answer by nerdybill(7384) About Me 

Question 347948: Showing my work, how do I evaluate this problem?
3.03+(-2.05)-(-9.25)+|-10|

Click here to see answer by nerdybill(7384) About Me 

Question 347949: Showing my work, how do I evaluate the expression below if x=3 and y=-1?
6x^+22xy+20y^-34x-y+2x^(2x^ will be to the 3rd power)

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

Question 347946: Showing the work, how do I evaluate this problem:
-3/15+(3/25)-|-1/25|

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

Question 348501: evaluate the expression 8x+3y over 5y when x =7 and y = 4
Click here to see answer by edjones(8007) About Me 

Question 348771: my topic is writing and solving equations
three times the quantity of four times a number and four is the same as twelve times the number added to twelve.
i have to translate the into an equation

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

Question 348949: please help me solve this equation: 2m/7+3m/14=3
Click here to see answer by edjones(8007) About Me 

Question 349104: 8 MORE THAN THE PRODUCT of x and 8
Click here to see answer by mananth(16946) About Me 

Question 349154: Solve for the variable in each equation below. Show all your work. Provide a check for each answer. If a solution is undefined, state that in your answer.
7s-2/3 - 3s-16/6 =2
CHECK:
Please help me!!! Thank you!!! :)

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

Question 349156: Solve for the variable in each equation below. Show all your work. Provide a check for each answer. If a solution is undefined, state that in your answer.
1-y/1+y = 2/3
CHECK:
Help me please! I'm very stuck!!

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

Question 349155: Solve for the variable in each equation below. Show all your work. Provide a check for each answer. If a solution is undefined, state that in your answer.
8/x-2 = 4
CHECK:
Pleaseeee help me, I am so stuck, I don't understand how to do this at all.
Thanks, I appreciate the help!

Click here to see answer by nyc_function(2741) About Me 

Question 349323: Will someone please show me (with steps) how to evaluate the following integrals?
a) cos^3 x dx
b) x sin 11x dx
Any help would be great.
-Thanks.

Click here to see answer by solver91311(24713) About Me 

Question 349447: Could someone please show me how to evaluate the following intergrals using the given substitutions?
((3x^2 + 6x)dx) / (x^3 + 3x^2 +11), substitution: x^3 + 3x^2 +11
Thanks,
-Nick.

Click here to see answer by Fombitz(32388) About Me 

Question 349500: Frank is 3 years less than twice as old as Brad. If Brad is 5 write an expression to show Frank's age...
Please help!
Thank you!

Click here to see answer by fractalier(6550) About Me 

Question 349466: -(-3)=?
Click here to see answer by user_dude2008(1862) About Me 

Question 349727: Add or subtract as indicated, Simplify. Show factoring, cancelling, and the steps to finding the lowest common denominator. (Assume that no denominator is 0.)

(x+5)(2)/x(2)+2x-15 + 2/4x-12
I really need help very soon, I am stuck and don't even know where to begin. Thank you! :)

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

Question 349729: Answer the following questions in the space provided.
Lisa invested in corn. She lost 5% of her investment, costing her $110. What was her initial investment? (A full 5-STEP SOLUTION not required, but do show work.
Help please?! I don't know what to do!!!

Click here to see answer by Theo(13342) About Me 

Question 349807: 12.757+3.98
Click here to see answer by Alan3354(69443) About Me 

Question 350160: 7x^3+10= x=-4
Click here to see answer by Fombitz(32388) About Me 

Question 350231: 8b-9w=
Click here to see answer by Alan3354(69443) About Me 

Question 350296: 5,500,000 in scientific notation
Click here to see answer by checkley77(12844) About Me 

Question 350288: 3(7x+2)-2(3x+8)
Click here to see answer by edjones(8007) About Me 

Question 350463: how would you solve this
xz-2y+8 if x=7 y=15 and z=8

Click here to see answer by mananth(16946) About Me 

Question 350466: how would you solve thise
xz -2y +8
if x=7 ,y=15 ,z=8

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

Question 350566: if x=12,y=8 and z=6
find the values of:
3x+5y+4z

Click here to see answer by benazir.sj@gmail.com(109) About Me 

Question 350565: simplify the following expressions:
4a-2b+3a+b-5a

thank you

Click here to see answer by benazir.sj@gmail.com(109) About Me 

Question 350673: x/4=-32
Click here to see answer by jim_thompson5910(35256) About Me 

Question 350712: Evaluate if m=5 and n=9
(10n-8m) / 5m

Click here to see answer by checkley77(12844) About Me 

Question 350837: How do you solve: m squared + m-20?
Click here to see answer by stanbon(75887) About Me 

Question 351560: here is the expression: -12-square root of 25
Click here to see answer by mananth(16946) About Me 

Question 351753: Solve each equation.
1/x + 1/6 = 1/4

Click here to see answer by Fombitz(32388) About Me 

Question 351751: Solve each equation.
x/x – 1 - 3/x = ½

Click here to see answer by checkley77(12844) About Me 

Question 351825: I am needing help on the following problems:
4x-5y+9+2x-y-14
-12x+y+7-(-x)+9y+(-7)
-x+2y+8x-5y+(+(-6x-)-4y
4-(7y)+7x-14+y-1
thanks!!

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

Question 351829: I need help with this problem 9-((-5)-7)
Click here to see answer by jim_thompson5910(35256) About Me 

Question 352000: marrianne figured out that her father's age is hee age plus five to the power of four, less 365, minus 22, all divided by six. if her father is 42, how old is marrianne?

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