Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 110683: The problem: Find two numbers whose sum is 44 and whose difference is 22
I already know the answer - I had no problem figuring it out. What I need to see is the proper way to solve it. I got the answers 33 and 11. This is how I started it:
x + y = 44
x - y = 22
x = 22 + y and x = 44 - y .....what next? I plugged numbers in until I found the answer but there must be an easier way?
Click here to see answer by scott8148(6628)

Question 110738: Simplify the Expression
19.26/15n + (-8/15n)
Any help this equation would be GREALTY appreciated.
Click here to see answer by stanbon(75887)

Question 110740: Find The Sum or Difference.
21. 7/8 + 11/12
Any help with this equation would be GREATLY appreciated.
Click here to see answer by jim_thompson5910(35256)

Question 110742: Find The Sum or Difference.
23. 5/8 - 3/4
Any help with this equation would be GREATLY appreciated.
Click here to see answer by jim_thompson5910(35256)

Question 110745: Evaluate the expression when x = - 3/8 and y = 7/12
27. x - y
Any help with this equation would be GREATLY appreciated.
Click here to see answer by jim_thompson5910(35256)

Question 110744: Evaluate the expression when x = - 3/8 and y = 7/12
x + y
Any help with this equation would be GREATLY appreciated.
Click here to see answer by jim_thompson5910(35256)

Question 110617: Describe the roots of the equation: 7x^2 + 2x - 3 = 0
Click here to see answer by jim_thompson5910(35256)

Question 110743: Find The Sum or Difference.
25.-6 2/3 - 4 3/5
Any help with this equation would be GREATLY appreciated.
Click here to see answer by stanbon(75887)

Question 110741: Find The Sum or Difference.
22. -3 1/4 +(-2 2/5)
Any help with this equation would be GREATLY appreciated.
Click here to see answer by edjones(8007)

Question 110807: Find the rate.
240 pounds of fertilizer
6 lawns
This is supposed to be like a fraction is set up, with a line in between the two. I do not understand rates can someone please help me?

Click here to see answer by Earlsdon(6294)

Question 110829:
Please help me solve the following problem:
-5k-19=5-13k
Click here to see answer by jim_thompson5910(35256)

Question 110830: You spend $60 on clothes and buy 3DVD movies. Your friend spends nothing on clothes and buys 8 dvd movies. You both spend the same amount of money. All the dvds cost the same amount. How much does each dvd cost?
Click here to see answer by edjones(8007)

Question 110834: Given f(x)=-x-4, find f(a+1)
Click here to see answer by jim_thompson5910(35256)

Question 110899: Can you please help me solve this? I keep getting 3x as the answer, but the book tells me that it should be x+y/y. I need to see the steps. Thanks.
(5x-y)/(3y)-(2x-4y)/(3y)
Click here to see answer by jim_thompson5910(35256)

Question 110931: 2x+3x-5=-15
Click here to see answer by jim_thompson5910(35256)

Question 110952: factor completly
6z^3-27z^2+12z
Click here to see answer by jim_thompson5910(35256)

Question 110952: factor completly
6z^3-27z^2+12z
Click here to see answer by scott8148(6628)

Question 110955: find the x-intercepts
y=x^2-3x-1
Click here to see answer by jim_thompson5910(35256)

Question 110954: complete the following statement. X^2+13x+42=(x+6)( )
Click here to see answer by jim_thompson5910(35256)

Question 110954: complete the following statement. X^2+13x+42=(x+6)( )
Click here to see answer by scott8148(6628)

Question 110967: (x-4)/2-1/5=(7x+1)/20
solve for x
Click here to see answer by stanbon(75887)

Question 110967: (x-4)/2-1/5=(7x+1)/20
solve for x
Click here to see answer by scott8148(6628)

Question 110967: (x-4)/2-1/5=(7x+1)/20
solve for x
Click here to see answer by MathLover1(20849)

Question 110996: Please help me with this problem. Factor completely: 6x^2-25x+24
Click here to see answer by jim_thompson5910(35256)

Question 110995: Please help me with this problem.Solve: x^2-3x-40=0
Click here to see answer by jim_thompson5910(35256)

Question 110992: 1.) 3x/(x+1) + 6/2x = 7/x
2.) 6x/(x+4) + 4 = 2x+2/(x-1)
3.) 7x+1/2x+5 + 1 =10x-3/3x
4.) 10/x^2-2x + 4/x = 5/x-2

Click here to see answer by stanbon(75887)

Question 110999: 3x+4=6y+2
Click here to see answer by checkley71(8403)

Question 110998: Will someone please help me solve this problem? simplify:x^2-14x+49/6x^2-37x-35
Click here to see answer by stanbon(75887)

Question 110993: Will someone please help me with this problem? it says to factor completely: 12x^2-6x=0
Click here to see answer by scott8148(6628)

Question 111025: Elaluate the formula I=PRT for P= 2500, r=3/50, and T= 1 1/2
Click here to see answer by checkley71(8403)

Question 111039: Will someone please help me solve this problem? The problem says to divide using long division:(x^4+2x^3-16x^2+x+6)/(x-3)
Click here to see answer by stanbon(75887)

Question 111037: Will somrone please help me solve this problem? perform the indicated operation and simplify:5x/x-1-x/x+2+6/x^2+x-2
Click here to see answer by stanbon(75887)

Question 111048: Steve hit four more home runs than twice the number of home runs Larry hit. Together they hit 10 home runs. How many home runs did Steve hit?
Click here to see answer by stanbon(75887)

Question 111022: Evaluate the formula P=2L+ 2W for L= 5 2/3 and 3 2/7
Click here to see answer by checkley71(8403)

Question 111026: Will someone please help me solve this problem? simplify:x^2-14x+49/6x^2-37x-35
Click here to see answer by scott8148(6628)

Question 111140: I'm trying to solve an equation involving price, tax and cost of an item
I'm trying to solve the equation for price
P + P x T = C Solve for P

Click here to see answer by Earlsdon(6294)

Question 111180: Find perimeter of the rectangle
Length= 4x+y+2, x+5y
Breadth= 4x+y, 2x+3
Sir i need help to solve this
THANK U
Click here to see answer by dolly(163)

Question 111199: I keep getting stuck on this problem (below is what I keep getting)
The problem is....Solve for xby completing the square: x^2+6x=2
What I can get
x^2+6x=2
6x^2=2
6(x^2)=2
I cant get any further, can you please tell me what i did wrong. Thank you so much!!!!
Click here to see answer by Earlsdon(6294)

Question 111198: Solve for x
3(x-6)=2(x+2)
I have tried this a couple different times and this is as close as I can get but I dont think it is right. Can you please help me.
3(x-6)=2(x+2)
3x-6=2x+2
3x-3x-6=2x+3x+2
6=5x+2
6+2=5x
8+5x
1.6=x
Can you please tell me what I did wrong? THank you very much for your help!!!
Click here to see answer by Earlsdon(6294)

Question 111286: Solve.
15-5x=20
Click here to see answer by dayne514(7)

Question 111283: Is -4 a solution to the equation 8x-6+3x=5+2x-10
Click here to see answer by MathLover1(20849)

Question 111297: what is an equation in slope-intercept form for the line containing the point(9,-3)and(0,5)?
Click here to see answer by MathLover1(20849)

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