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

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 Algebra: Evaluation of expressions, parentheses Solvers Lessons Answers archive Quiz In Depth

 Question 374816: Area of a triangle with base b and height h a=1/2 bh, for b Click here to see answer by vasumathi(46)

 Question 375644: Evaluate and, if possible, simplify. -6-x/12 for x = -6 Click here to see answer by rfer(12677)

 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)

 Question 375818: Solve the equation. Be sure to show all of your work. 10n – 9 = 61 Click here to see answer by Fombitz(13828)

 Question 375817: Simplify. -4c – 7c – (-8 + c) Click here to see answer by Fombitz(13828)

 Question 375815: Solve using the multiplication principle. 4b = -76 Click here to see answer by Fombitz(13828)

 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(10682)

 Question 376124: What is the order of operations of -(8x + 4) Click here to see answer by rfer(12677)

 Question 376256: how would you put would you put this equation:(4x9)÷(16-14)in words Click here to see answer by nyc_function(2733)

 Question 376245: Perform the indicated operation -21 -(-9)/-21 - (-21) Click here to see answer by checkley79(3056)

 Question 376322: Calculate the answers in the following 1) - | | 30 + (-11) | + (-17) | Click here to see answer by jim_thompson5910(28598)

 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(12677)

 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(28598)

 Question 376731: Solve using the multiplication principle. -6 > -2b Click here to see answer by robertb(4012)

 Question 377949: How do you solve -2/3 * (-1/3) Thank you Click here to see answer by edjones(7569)

 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(7569)

 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)

 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)

 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(12270)

 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(13828)

 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(13828)

 Question 379598: simplify 4 to the third power / 7 to the second power Click here to see answer by Fombitz(13828)

 Question 380113: Do 5+x and x+5 represent the same expressions? Why? Click here to see answer by kingme18(98)