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 282697: What´s the solution to: (3a-12a+8a-9b-7b+8b-11b+80)
solution to: 3x(1+2+5+9)+(3y-9y+4x-12x)

Click here to see answer by JBarnum(2146) About Me 

Question 282055: what is the value of a in the proportion:
10 a -8 = 6a + 24
_______ ______
3 = 5

Click here to see answer by JBarnum(2146) About Me 

Question 279988: what is an equivalent expression of 23 + mn
Click here to see answer by JBarnum(2146) About Me 

Question 278051: Evaluate 5x/10 + y if x= 3/5 and y = 7/5
Click here to see answer by JBarnum(2146) About Me 

Question 285803: Write the standard form of the equation of the line through the given point with the given slope.
through: (3,5), slope = 5/3

Click here to see answer by Grinnell(63) About Me 

Question 285815: Write the point-slope form of the equation of the line described
through: (-3,-3), parallel to y=7/3x+3

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

Question 285829: simplify the expression -4(-3x+y)-(-y-2x)
Click here to see answer by checkley77(12844) About Me 

Question 285836: Write the point-slope form of the equation of the line described.
through: (-4,-1), parallel to y=-1/2x-1

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

Question 285838: Simplify (-3b/a^3)^3
Click here to see answer by checkley77(12844) About Me 
Question 285838: Simplify (-3b/a^3)^3
Click here to see answer by stanbon(75887) About Me 

Question 285845: simplify (-4w^2 – 9w – 1) + (-6w^2 – 9w + 1) – (-3w – 8)
Click here to see answer by unlockmath(1688) About Me 

Question 285840: simplify (z^7)^-6
Click here to see answer by user_dude2008(1862) About Me 

Question 285854: factor z^2 - z - 30
Click here to see answer by user_dude2008(1862) About Me 

Question 286345: Can you tell me how to write out
4th root of (x^5/15y^15)

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

Question 287382: HOW DO U SOLVE FOR X AND Y IN A MATH PROBLEM??
Click here to see answer by richwmiller(17219) About Me 

Question 288544: Could you help me with problem. Is it possible to explain step by step.Thank You
When a = 0.1, b = 0.5 and c= 0.2
a-(b-c)=0.1 - (.05 - .02) = ?

Click here to see answer by jaydducote(11) About Me 

Question 289069: 7x - 5x + 15 = x + 8
Click here to see answer by richwmiller(17219) About Me 
Question 289069: 7x - 5x + 15 = x + 8
Click here to see answer by Deina(147) About Me 

Question 289141: Using a standard American keyboard, how do I enter a square root symbol ? How do I enter an exponent ? How do I enter a pi symbol ? How do I enter a greater than or less than symbol ? How do I enter does not equal symbol ? If you can add any other 'problematic' keyboard entries it would be greatly appreciated.

Click here to see answer by stanbon(75887) About Me 
Question 289141: Using a standard American keyboard, how do I enter a square root symbol ? How do I enter an exponent ? How do I enter a pi symbol ? How do I enter a greater than or less than symbol ? How do I enter does not equal symbol ? If you can add any other 'problematic' keyboard entries it would be greatly appreciated.

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

Question 289425: simplify -3(4x-1)+9x+8x if x=-9
Click here to see answer by user_dude2008(1862) About Me 

Question 289449: roots to the equation
x^2+4x-21

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

Question 289826: 3 - 2(4 + 8) ÷ 3

How do you solve this?

Click here to see answer by Deina(147) About Me 

Question 182918: 1.
Simplify the algebraic expression
2x - 3y - 7y + 4x - 5
and evaluate it for x = 10, y = 4.
Identify the variables, constants, and coefficients in the simplified expression.

Click here to see answer by geneice45(1) About Me 

Question 290372: whats equvalent to 25w(2y+4z) over 5w
it's either: 50y+20z, 10y+20z, 10y+4z or 50y+100z
please help me in going into algebra next year and i cant figure this algelbra homework out ♥

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

Question 290414: -9/[x(x+10)^2]x= -4 I did this problem and I have 81 on my first answer and when I did it gain the second time i got 1/16 i don't know if correct please help
Click here to see answer by richwmiller(17219) About Me 

Question 290606: Given the function f described by f(x)=2x find each of the following
f(-5)=
f(18)=
f (21)=

Click here to see answer by user_dude2008(1862) About Me 

Question 290973: Use an inequality and the five-step process to solve the problem.
The equation y = 0.004x - 0.40 can be used to determine the approximate profit, y in dollars, of producing x items. How many items must be produced so the profit will be at least $1402?

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

Question 291003: what is the equivalent expression of -(a-75) without parentheses?

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

Question 291243: f(x)=2x-1 find f(0) f(3)
Click here to see answer by jim_thompson5910(35256) About Me 

Question 291282: Find a value of n to make each sentence true
n x 85 is between 175 and 250.
Helping son with math homework and not sure how this is done.
Thanks

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

Question 292196: Please explain how to get my answer to 2x-7x=-40
Click here to see answer by Alan3354(69443) About Me 

Question 292589: which expression is equal to ( 34 x 5 ) x 2 ?
Click here to see answer by Fombitz(32388) About Me 

Question 293145: Evaluate
z+y/5 for z=22 and y=13
z+y/5=
Please evaluate, I am almost done with my test and I need some help with this problem. Thank you

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

Question 293701: 12-(2x+5)=-2+(x-3)
Click here to see answer by jim_thompson5910(35256) About Me 

Question 294015: Use an inequality and the five-step process to solve the problem.
A bag of marbles has twice as many blue marbles as green marbles, and the bag has at least 33 marbles in it. At least how many green marbles does it have?

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

Question 294564: T=4S IF S=12,WHAT IS THE VALUE OF THE T? THANKS
Click here to see answer by Monkibat(7) About Me 

Question 294609: evaluate the expression 2x-(4y-3)+5xz, when x=-3, y=2 and z=-1
Click here to see answer by jim_thompson5910(35256) About Me 

Question 294824: 25(x-4)+3x=77-2(x-3)
Click here to see answer by jim_thompson5910(35256) About Me 
Question 294824: 25(x-4)+3x=77-2(x-3)
Click here to see answer by unlockmath(1688) About Me 

Question 294995: what is two thirds of a number increased by two is ten.

Click here to see answer by Aust05(12) About Me 

Question 295553: help me evaluate this 3 x (5 - 1)little 3 + 16 divide 4 +(6 - 3) little 2
Click here to see answer by OmniMaestra(21) About Me 

Question 295556: help to solve this problem
{6(3 - 5) + 10}little 2 divide (-9) - 5 little 3

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

Question 296047: 19/22 + (-1/2) Im confused on how to get to the solution
Click here to see answer by richwmiller(17219) About Me 

Question 296055: (-1/5)^{3} - how do I figure this one out?
Click here to see answer by richwmiller(17219) 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