Questions on Algebra: Evaluation of expressions, parentheses answered by real tutors!

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Question 375760: How is this supposed to be written out? I think it is supposed to be 5x=75+2y but I am not sure. Is it even possible to write out?
"Five times a number is 75 greater than two times a number"

Click here to see answer by jessica43(140) About Me 

Question 375818: Solve the equation. Be sure to show all of your work.
10n – 9 = 61

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

Question 375817: Simplify.
-4c – 7c – (-8 + c)

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Question 375815: Solve using the multiplication principle.
4b = -76

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

Question 375816: Solve the equation. If it is an identity (all real numbers) or a contradiction (no solution), so state.
x – 5 + 6x = -2 + 7x

Click here to see answer by ewatrrr(24785) About Me 

Question 375916: 6a-3x-2y,ifa=3,x=7,and y
=4

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

Question 375962: "How do I simplify a radical expression?"
Click here to see answer by jim_thompson5910(35256) About Me 

Question 376044: 6m-[2m-(m+10)+5m]+8
Click here to see answer by nyc_function(2741) About Me 

Question 376043: 4[a-2(3a+4)]-7a-12
Click here to see answer by nyc_function(2741) About Me 

Question 376124: What is the order of operations of
-(8x + 4)

Click here to see answer by rfer(16322) About Me 

Question 376256: how would you put would you put this equation:(4x9)÷(16-14)in words
Click here to see answer by nyc_function(2741) About Me 

Question 376245: Perform the indicated operation -21 -(-9)/-21 - (-21)
Click here to see answer by checkley79(3341) About Me 

Question 376322: Calculate the answers in the following
1) - | | 30 + (-11) | + (-17) |


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

Question 376718: Solve the problem. Be sure to show all of your work.
At many colleges, the number of full-time-equivalent students, f, is given by
f=n/15
where n is the total number of credits for which students enroll in a given semester. Determine the number of full-time-equivalent students on a campus in which students registered for a total of 25,350 credits.

Click here to see answer by rfer(16322) About Me 

Question 376733: Solve the equation. Be sure to show your work. All final answers must be in simplest form
n-1/6=8

Click here to see answer by robertb(5830) About Me 

Question 376730: Solve using the addition and multiplication principles. Be sure to show all of your work.
4x – 6 > -6

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

Question 376731: Solve using the multiplication principle.
-6 > -2b

Click here to see answer by robertb(5830) About Me 

Question 377165: Solve for x
25 = -5/9x
Simplify your answer as much as possible

Click here to see answer by Alan3354(69443) About Me 

Question 377959: Find -x when x= -33/28
Thank you

Click here to see answer by richard1234(7193) About Me 

Question 377949: How do you solve -2/3 * (-1/3)
Thank you

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

Question 377970: Thank you for being available this evening,
I wanted to know about the 'signs' in between algebra problems with brackets. Here is my example problem:
[3(x+2)+2x]-[4(y+2)-3(y-2)]
Will the minus sign between the problems on the left and right side change the answer at all? Or will it make a difference in the outcome?

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

Question 377969: Subtract the following -6 - (-4)
I get -2 but am not sure if I am doing it correctly or not. Thank you

Click here to see answer by brittj97(1) About Me 

Question 377989: What is 100pg/625q equals?
Click here to see answer by Fombitz(32388) About Me 

Question 378214:
Click here to see answer by Fombitz(32388) About Me 

Question 379199: The area of triangle with base, b and height h, is given by
a=1/2bh
If the area of a certain triangle is 38 square centimeters and the base is 8 centimeters, what is the height? Please show all of your work.

Click here to see answer by wowitsme123(1) About Me 

Question 379299: x-3(4-5x)=8(2X-1.15)
Click here to see answer by robertb(5830) About Me 

Question 379378: 6x/16
Click here to see answer by edjones(8007) About Me 

Question 379461: Hello , I need help with this problem, I am totally lost.
How do I write this out with positive exponents ?
6^-2 a^-3 b^4
------------- there are large brackets on each side of this problem.
c^-4 d^-2
Thank you for your help.

Click here to see answer by mananth(16946) About Me 

Question 379325: x - y - (y - x) - 4 and 3x + 3(y + 2) tell whether the system has no solution, exactly one solution, or infinitely solutions.
Click here to see answer by Fombitz(32388) About Me 

Question 379466: Hello again, I have another problem here that I do not get. How would I simplify this equation ?
5 a b^2
( ------- )^2
C^3
This equation is within large brackets and to the 2nd power.
Thanks for your help.

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

Question 379598: simplify 4 to the third power / 7 to the second power
Click here to see answer by Fombitz(32388) About Me 

Question 380113: Do 5+x and x+5 represent the same expressions? Why?

Click here to see answer by kingme18(98) About Me 

Question 380347: evaluate 25^-4/2
1/33
1/625
1/52
32/256

Click here to see answer by ewatrrr(24785) About Me 

Question 380477: (x-0.8)(x-0.5)
Click here to see answer by stanbon(75887) About Me 
Question 380477: (x-0.8)(x-0.5)
Click here to see answer by mananth(16946) About Me 

Question 380354: Solve x2 + 5 = −2x by graphing
Click here to see answer by Fombitz(32388) About Me 

Question 380995: evaluate z/y for z = 28 and y = 4
Click here to see answer by Jk22(389) About Me 

Question 380992: use multiplying by 1 to find an expression equivalent to 2/5 with a denominator of 35x
Click here to see answer by Fombitz(32388) About Me 

Question 381129: 1/3s + 7/9 = 4/3s
(-3/1s)+ 1/3s + 7/9= 4/3s -(3/1s)
7/9= 1/3s multiply both sides by 3/1
7/3=s
This is what I got for my answer, but when I check it, the solution doesn't add up. Where am I going wrong?

Click here to see answer by rfer(16322) About Me 

Question 381499: how do i factor 6p^2+5p+1?
Click here to see answer by Jk22(389) About Me 
Question 381499: how do i factor 6p^2+5p+1?
Click here to see answer by ewatrrr(24785) About Me 

Question 383038: Evaluate: 100 / b
when b = 4

Click here to see answer by rfer(16322) About Me 

Question 383485: x(m+n+1)
Click here to see answer by robertb(5830) About Me 

Question 384069: evaluate the expression for the given value of x: -2x,x=5
Click here to see answer by Fombitz(32388) About Me 

Question 384569: 10 – 8 – 10 + 2 = 4
where do I insert the parentheses?

Click here to see answer by richard1234(7193) About Me 

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