Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 230269: (S-C)/C = R

I am trying to solve for C. Can you rearrage the formula so C is on the right side:
ex. some+formula = C
Thanks!!
Click here to see answer by checkley77(12844)

Question 230328: how would you solve.... 7/8 + t = 1/4
Click here to see answer by rfer(16322)

Question 230209: find the area of the region between the graph of y = x^3 and the x-axis from x= 1 to x= 4
Click here to see answer by Alan3354(69443)

Question 230355: Hi I was wondering if someone could help with this problem.
Find the indefinite integral using u substitution for the following:
(4x-11)/(2x^(2)-11x+19) dx (Use u=2x^(2)-11x+19)
Thanks, Judy
Click here to see answer by stanbon(75887)

Question 230381: find an equation of the line containing the given pair of points ( 4,2) (12,8) y= I came up with y= 4 am I close
Click here to see answer by stanbon(75887)

Question 230406: How do I solve this equation, please show steps.
4x - 5(3x + 10) = 126
I've tried distrubuting 5 to 3x and 10 to get 15x + 50. So then my equation is 4x - 15 + 50. So I add 15 to itself crossing it out, then I add it to 50 which is 65. Im stuck on this part I dont know what to do.
Click here to see answer by user_dude2008(1862)

Question 230413: solve the given equation for the variable 9x-2(x+4)=-29
Click here to see answer by PRMath(133)

Question 1758: I'm taking an algebra class for the first time in years and cannot remember how to solve this:i had got this answer x=6.

The answer should be 6 but i can't figure out how to solve. Thanks for any help.

Click here to see answer by 95151(1)

Question 230490: Can you please help me solve 5+2(n+1)=2n
Click here to see answer by stanbon(75887)

Question 230490: Can you please help me solve 5+2(n+1)=2n
Click here to see answer by user_dude2008(1862)

Question 230533: Please help me solve this, thanks.
(a-1)^1/3=-3
Click here to see answer by rapaljer(4671)

Question 230531: (x-2)^3/4=2
Please help this one is killing me. Thanks
Click here to see answer by rapaljer(4671)

Question 230217: find the values of (theta) for which the equation tan(theta)=1 is true.express your answer in radians
Click here to see answer by chibisan(131)

Question 230532: Please help me solve this one, thanks in advance.
x^2/3-x^1/3-20=0
Click here to see answer by jsmallt9(3758)

Question 229750: approximate the greatest real root of f(x) = x^3 - 2x -5 to the nearest tenth
Click here to see answer by Alan3354(69443)

Question 230356: In 1990, the life expectancy of males in a certain country was 66.3 years. In 1997, it was 70.0 years. Let E represent the life expectancy in years t and let t represent the number of years since 1990. E(t)= ___t +____ round to the nearest tenth. Use the fuction to predict life expectancy of males in 2009. E (19) =______ round to the nearest tenth. I'm sorry I tried and I can not get this problem
Click here to see answer by ankor@dixie-net.com(22740)

Question 230822: please help me solve this equation.c+4=-14.it says check your solution
Click here to see answer by Theo(13342)

Question 230822: please help me solve this equation.c+4=-14.it says check your solution
Click here to see answer by unlockmath(1688)

Question 230823: which number is not a solution to the equation
(2x-3)(x-11)(x/3+7)=0?
A.-21
B.11
C.-3/-2
D.3/2
Click here to see answer by Alan3354(69443)

Question 230823: which number is not a solution to the equation
(2x-3)(x-11)(x/3+7)=0?
A.-21
B.11
C.-3/-2
D.3/2
Click here to see answer by Theo(13342)

Question 230828: please show me how to work out the problem 144=-12(x+5)
Click here to see answer by Alan3354(69443)

Question 230828: please show me how to work out the problem 144=-12(x+5)
Click here to see answer by Theo(13342)

Question 230834: Find the value of p and the value of q
x^-6x+15 = (x-p)^+q
Click here to see answer by stanbon(75887)

Question 230835: how do I solve 10x+11=-19
Click here to see answer by unlockmath(1688)

Question 230956: 1 calorie = 4.184 joules, and 1 calorie is the amount of heat needed to raise 1gram of water 1 degree celsius.

I have 45 degrees celsius. I need help converting this to calories and kilocalories.
Click here to see answer by Alan3354(69443)

Question 230947: (7.6 #2)
Can someone help me with this?
By what should both sides of the equation below be multiplied to clear it of fractions?
a) x/7 = 2x/3 + 9/4x
b) 6x/x-6 = 5+ 1/x-6
Thank you,
Alberto
Click here to see answer by checkley77(12844)

Question 231036: I need help with the following problem. I don't have a clue on how to figure it out.
Find a value for K so that the following system of equations has infinitely many solutions.
6x + 3y = 15
Kx + y = 5
Thank you,
Denise
Click here to see answer by edjones(8007)

Question 231095: please help me with this. i would appreciate it very much.
1-2/x=14/3x-1/3
thank you!

Click here to see answer by Alan3354(69443)

Question 231090: what is an everyday formula that we use in real life. please give formula and explanation.
Click here to see answer by unlockmath(1688)

Question 231155: Some doctors use the formula ND=1.08T to relate the variables N(the number of patient appoinments thr doctor schedules in one day, D(the duration of each patient appointment), and T( the total number of minutes the doctor can use to see patients in one day). A: Solve the formula for N
B: Use the result to find the number of patient appointments N a doctor should make if she has 6 hours available for patients and each appointment is 15 minutes long. (round answer to the nearest whole number).
Click here to see answer by user_dude2008(1862)

Question 231194: This is a rational equation. 4 over X plus seven equals 2 over three X
Click here to see answer by unlockmath(1688)

Question 231195: This is a rational equation. 4 over X plus 7 equals 2 over 3X
Click here to see answer by jsmallt9(3758)

Question 231162: a leather coin purse has the shape of a triangle. Two sides are equal in length and the third side is 3 centimeters shorter than one and one-half times the length of the equal sides. the perimeter is 28.5 centimeters. Find the lengths of the sides.

Click here to see answer by checkley77(12844)

Question 231201: how to solve this system of equation graphically,
x+y=-4
x-y=6
Click here to see answer by checkley77(12844)

Question 230804: find the y-intercept of a parabola whose vertex is (-1,2), which is turned downward, and whose width is the same as y=2x^2.
Click here to see answer by ankor@dixie-net.com(22740)

Question 231329: Please solve this problem.

Find the measure of the exterior angle.

The equation on the exterior of the triangle is 3x-22. One side inside the triangle reads 80 degrees and the other one reads x.

Please show work so i can do this on my own correctly.
Click here to see answer by stanbon(75887)

Question 231340: Please solve this equation.

4x+8=2x+3+51

Please show all work.
Click here to see answer by rfer(16322)

Question 231340: Please solve this equation.

4x+8=2x+3+51

Please show all work.
Click here to see answer by bamaboy(14)

Question 231273: Perform the operations indicated:
1. (7x- 2) + (6x+ 4)
2. (3x - 3.5) - (x + 1.8)
3. [7x^2 - 2/3)x]- [(4/9)X - 5]
4. (-5x^2 + 12x - 4) - (-2x^2 + 6)
5. -3x(-4x^2 + 7x - 9)
6. (8 - 3x)(2 + 4x)
7. (2x + 8)^2
8. (2x + 5)(x^2 + 3x + 2)
9. 6x^2+8x-7/ -x
10.3x^2+22x-8 / x+2
Click here to see answer by rfer(16322)

Question 231361: Please solve this equation.

6x-7=1-3-x+2x

thank you
Click here to see answer by bamaboy(14)

Question 231364: Please solve this equation.

6x-7=(103-x)+2x

thank you
Click here to see answer by bamaboy(14)

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, 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39916..39960, 39961..40005, 40006..40050, 40051..40095, 40096..40140, 40141..40185, 40186..40230, 40231..40275, 40276..40320, 40321..40365, 40366..40410, 40411..40455, 40456..40500, 40501..40545, 40546..40590, 40591..40635, 40636..40680, 40681..40725, 40726..40770, 40771..40815, 40816..40860, 40861..40905, 40906..40950, 40951..40995, 40996..41040, 41041..41085, 41086..41130, 41131..41175, 41176..41220, 41221..41265, 41266..41310, 41311..41355, 41356..41400, 41401..41445, 41446..41490, 41491..41535, 41536..41580