Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 64856: 13-2/5 = H + 6-4/15
My daughter has just begun to take Pre-Alegbra & we are seeking help in learning the proper to understand equations. Thanks!
Click here to see answer by Edwin McCravy(8999)

Question 64841: What is the first time after 4 o'clock that the hands of the clock make an angle of 65degree?
Click here to see answer by ankor@dixie-net.com(15746)

Question 64882: 3x divided by 4 equals -8
Click here to see answer by checkley71(8403)

Question 64893: what is the answer to using addition on #1 and #2 and on #3 using substituion
#1)x + 2y =5 #2)5x -4y =1 #3) 7x + y = 1
3x +4y =1 -10x + 8y = -3 3x + 2y= -9

Click here to see answer by checkley71(8403)

Question 64870: Solve for x: 5x-4(x-1)=-3(2x-5)-x
Click here to see answer by checkley71(8403)

Question 64907: If it is possible to help me i was wondering if you could help me. I don't really understand it if you can find the book, it's on page 357 problem 12
heres the question though if you can't find the book mabe you can still help me!
7a=2(a-10)
thats the problem! Can you please help me?
thnak you.
Click here to see answer by checkley71(8403)

Question 64916: Please help factor the polynomial completely
2w^2+6w-108 the answer is 2(w-6)(w+9) how do you arrive at this?
Click here to see answer by checkley71(8403)

Question 64920: Please help:Write an equation that represents the relationship "m varies jointly as b and the square of a" Use k as the variation constant.
Click here to see answer by stanbon(57967)

Question 64868: Write the equation y=negative 3/4x+1/8 in standard form with integer coefficients.

Click here to see answer by stanbon(57967)

Question 64954: f(x)= x2-9over x2-5x-14
Click here to see answer by stanbon(57967)

Question 64954: f(x)= x2-9over x2-5x-14
Click here to see answer by Edwin McCravy(8999)

Question 64917: Please help! I'm practicing for the final exam.thanks
z^3-10z+3/z-3
Click here to see answer by stanbon(57967)

Question 64958: what is point slope form, y intercept form, and standard form???. . . . i left my book at home =(
Click here to see answer by tutorcecilia(2152)

Question 64915: 6x^3+2x^2+8x+124 divided by 2x+2
Click here to see answer by josmiceli(9817)

Question 64960: Please help me with this problem: Solve A = 1/2 h(b1 + b2) for b2
Click here to see answer by ankor@dixie-net.com(15746)

Question 64960: Please help me with this problem: Solve A = 1/2 h(b1 + b2) for b2
Click here to see answer by ptaylor(2052)

Question 64987: 21 - y = -87 - 2y
Click here to see answer by funmath(2925)

Question 64655: please show me how to solve. Thanks!

8/3M-2=5/3m+4
Click here to see answer by ankor@dixie-net.com(15746)

Question 64914: 2x4-4x3+2x=0
2x(x3-2x2+1)=0
2x=0; x3-2x2+1=0
x=0 ; x3-2x2+1=0
Click here to see answer by madhujiithcharu@yahoo.co.in(28)

Question 65058: i have a couple questions
what is the following answers?
(19)6y+4=y+14
Click here to see answer by tutorcecilia(2152)

Question 65060: 5x-7=2x+8
Click here to see answer by tutorcecilia(2152)

Question 65108: Find the discriminant of the equation and give the number and type of solution of the equation. x^2+6x-16=0
Click here to see answer by venugopalramana(3286)

Question 65155: I'm really confused with the process that I'm supposed to follow. I am finding it difficult to even know where to start.
The first problem is:
-x+y=2
_______
x+y=4
The only thing I know for sure is that I'm supposed to use the substitution method but what am I substituting, with what and why.
I really do appreciate whatever help you can give me.
Thank you
Click here to see answer by stanbon(57967)

Question 65105: Solve the equation by completing the square. x^2-4x+3=0

Click here to see answer by ptaylor(2052)

Question 65057: i have a couple questions
what is the following answers?
(17)5x-7=2x+8
(18)2y+3=y+5
Click here to see answer by checkley71(8403)

Question 65080: Solve
(3x + 5 / 6) - (2x - 4 / 5) = 3
Click here to see answer by funmath(2925)

Question 65230: Can you help me with this problem? I am to use a chart to help solve.
Elliot paid $1.50 a dozen for some flowers. He sold all but 5 dz of them for $2 a dozen, making a profit of $18.00. How many dozen flowers did he buy?
This is what I had and it is wrong: (table and equation)
Bought x 1.50 1.5x
Sold x-5 2.00 2x-10
1.5x + 2x - 10x = 18
3.5x - 10 = 18
+ 10 +10
3.5x = 28
___________
3.5 3.5
x=8
x-5 =3
(3 dozen)
Click here to see answer by stanbon(57967)

Question 65246: 4(x-2)+5=5(x-1)+2
Click here to see answer by funmath(2925)

Question 65244: 2(x-3)=2(1+x)
Click here to see answer by funmath(2925)

Question 65243: 3=2(x-5)+5-x
Click here to see answer by funmath(2925)

Question 65242: 7.1x-2.0=2.2x-10.5
Click here to see answer by funmath(2925)

Question 65241: -x-9=-11x-5
Click here to see answer by funmath(2925)

Question 65240: -3=-6-3x
Click here to see answer by funmath(2925)

Question 65238: 34=-48-m
Click here to see answer by funmath(2925)

Question 65077: (-x + 2 / 3) - (2x + 5 / 4 ) = 5
thank you
Click here to see answer by checkley71(8403)

Question 63158: (0,6),m= 3/5 (three fifths)
Click here to see answer by 303795(595)

Question 65301: 2(A+4)=3A-1
Click here to see answer by funmath(2925)

Question 65370: 3^2 + (1/2)^2=
Click here to see answer by stanbon(57967)

Question 65386: y=2X-1 if X = -1
Click here to see answer by Zizzle(2)

Question 65363: 0.05x+0.09(9,000-x)=570
Click here to see answer by babynarah2007(12)

Question 65454: 3(x+3)+6x-6
please help me slove this problem
Click here to see answer by stanbon(57967)

Question 65466: please help me solve the following:
2/3(4x-7)=-2
Click here to see answer by stanbon(57967)

Question 65477: Add and express in simplest form:
5 + 11
-- --
4cd 4cd
If I add these it would look like this I believe:
5+11= 16
4cd + 4cd = 8c^2d^2
Leaving the equation looking like this:
16
--------
8c^2d^2
Is this correct? Thank you very much!
Click here to see answer by stanbon(57967)

Question 65486: Subtract and express in simplest form
3 - 1
--------- ---------
x^2+4x+3 x^2-9
3-1 = 2
x^2 and x^2 cancel each other out leaving me with 4x+3 and -9
4x + 3 = 7x
Giving me the problem of:
2
---
7x
Is this the right way of doing it and the right answer?

Click here to see answer by stanbon(57967)

Question 65484: Subtract and write in simplest form:
2 - 4
-------- ----------
a^2+a-12 a+4
Can anyone please explain this problem to me so I can figure out how to understand the concepts and how one gets the actual answer. Love your help, thanks
Click here to see answer by stanbon(57967)

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