Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 342956: how do i work out
x/3-4=2
Click here to see answer by Fombitz(13828)

Question 342969: The area of a trapezoid is 51 square meters. One base is 7 meters long, and the other base is 10 meters long. Find the height of the trapezoid.(Given the area of a trapezoid A=1/2h(b+c) where b and c are parallel sides, h is the height of the trapezoid)
please help and will you please explain step by step
thank you so much:)
Click here to see answer by ankor@dixie-net.com(15746)

Question 342981: 3x-1=7-(8+3x)
Click here to see answer by jim_thompson5910(28715)

Question 342991: The path of a rocket projectd in the air can be represented by the equation h=16^2+64t, where h represents height, and t represents time. Which equation would you use to find the time that the rocket reaches 120 feet?
a.)h=-16ft^2+64t+120
b.)h=120t^2+64t
c.)120=-16t^2+64t
d.)h=16t^2+120t
Click here to see answer by user_dude2008(1861)

Question 343011: Please help me solve this
Find the unknown in the following equation. If there are more than one solution, then separate the solutions with a comma.
(6/2)(x + 8)^2 + (2/4) = (13/8}.
Click here to see answer by Fombitz(13828)

Question 342613: Find slope of f(x)x+5
Click here to see answer by Fombitz(13828)

Question 343043: whats 3 1
-z =-5-
4 2

Click here to see answer by solver91311(17077)

Question 343044: Mr. Fairbanks invested half his money in land, a tenth in stock, and a twentieth in bonds. He put the remaining $35,000 in a savings account. What is the total amount of money that Mr. Fairbanks saved or invested?
Click here to see answer by rfer(12729)

Question 343097: -14=X+2
Click here to see answer by rfer(12729)

Question 343073: 9+5a=2a+9
Click here to see answer by rfer(12729)

Question 343064: 3-(2t+5)=-12
Click here to see answer by rfer(12729)

Question 343216: My daughters 7th grade math book is asking this question. Write an equation that represents the distance (d) in thousands of miles that the Earth (66.6 thousands of mph) can travel at its average revolution speed in hours (h).
Click here to see answer by Alan3354(31518)

Question 343235: Twice the greater of two consecutive odd integers is 13 less than three times the lessor. Find the integers
Click here to see answer by nyc_function(2733)

Question 343253: -3+8K-2K=4K+7+4K
Click here to see answer by mananth(12270)

Question 343230: it says put each equation into standard form, if needed. Factor each equation and state the solutions. x square -6x + 34=5x+10
Click here to see answer by edjones(7569)

Question 343230: it says put each equation into standard form, if needed. Factor each equation and state the solutions. x square -6x + 34=5x+10
Click here to see answer by MathTherapy(1480)

Question 343326: How do you solve this?
0 > 4 = 4/5 n
Click here to see answer by Alan3354(31518)

Question 343330: w^2+18w+a
Click here to see answer by nyc_function(2733)

Question 343388: I took a quiz and i was wondering if i got this problem right, i did it as follows:
3x-2y=4
-3x -3x
-2y=4-3x
I left the problem like this because the teacher was asking us to isolate "y" so it fine if i left it as -2y=4-3x
Click here to see answer by mananth(12270)

Question 343166: 5(x-8)+12=4-7x
Click here to see answer by nyc_function(2733)

Question 343401: What is -4 + 7 - 5 -8 + 6?
Click here to see answer by nyc_function(2733)

Question 343407: What is the slope and y- intercept of 5x-y+3=0?
Click here to see answer by Fombitz(13828)

Question 343428: Hi,
I am trying to solve:
x(x-3)=21
I tried the distributive property and got
x^2-3x=21
I divided each side by 3
x^2-x=7
subtracted x from x^2
and get
x=7
but when I try to work it out, the solution is wrong.. What am I missing? Thank in advance for the help.
Click here to see answer by stanbon(57962)

Question 343438: what are the conditions to qualify as parabola?? thank you!!
Click here to see answer by solver91311(17077)

Question 343447: Solve for x. State any restrictions on the variables.
a(bx+2)=cx-12
I find this problem very difficult, I didn't know how to set up the problem or solve it but I did try.
Click here to see answer by solver91311(17077)

Question 343460: an aircraft flies 120 km south, then 150 km east, then 200 km north. how far is the aircraft its starting position?????
Click here to see answer by Fombitz(13828)

Question 343465: how can we get help with word problems?
Click here to see answer by Fombitz(13828)

Question 343471: 9-4{-2(4-8)-5(3-1)}
Click here to see answer by Alan3354(31518)

Question 343521: THE OPPOSITE OF HE QUOTIENT OF X AND Y IS?
_x/y
Click here to see answer by stanbon(57962)

Question 343583: How do you figure out how to solve ?
Click here to see answer by jim_thompson5910(28715)

Question 343583: How do you figure out how to solve ?
Click here to see answer by solver91311(17077)

Question 343576: two sisters save $180. one made 25 more than the other what equation can we use to represent this?

Click here to see answer by jim_thompson5910(28715)

Question 343589: Fill in the parantheses to make statement correct.
-9-(-2.3)= -9+(?)
Click here to see answer by jim_thompson5910(28715)

Question 343595: Fill in the parentheses so that the equation is correct.
13+ ( )= -4
Click here to see answer by jim_thompson5910(28715)

Question 343595: Fill in the parentheses so that the equation is correct.
13+ ( )= -4
Click here to see answer by solver91311(17077)

Question 343598: Fill in the parenthese so that equation is correct.
-48 divided by ( ) = -6
Click here to see answer by rfer(12729)

Question 343662: the perimiter of a rectangle is 78 feet. can you help me find the dimensions?
width
2x-4
length
2x+3
Click here to see answer by vleith(2825)

Question 343725: 17=w/5+13
Click here to see answer by jim_thompson5910(28715)

Question 343751: I am trying to figure the following problem out for work. x-7.70/x=.47 i would like to know how the solution will work. Can you help with this?
Click here to see answer by stanbon(57962)

Question 343806: Write the equation y = 2x +3 in standard form
Click here to see answer by Fombitz(13828)

Question 343921: what is 4h+6=22
Click here to see answer by Jk22(389)

Question 343932: solve for "x"
ax-m=b+c
Click here to see answer by Fombitz(13828)

Question 343852: Write each equation in function notation. Solve the equation for y and then replace y by f(x). Then make a table showing three ordered pairs that are solutions to the equation. Finally graph the equation.
4y + 2x = -8
________________________________________

Click here to see answer by ewatrrr(10682)

Question 343644: 1/3(s-2)= s+4
Click here to see answer by Fombitz(13828)

Question 344002: How do you graph this? Center (7,1), Graph contains the points (1,-7)
Click here to see answer by solver91311(17077)

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11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 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