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

Tutors Answer Your Questions about expressions (FREE)

Question 195002: Simplify the expression by first factorising the numerator and the denominator
7x+14y
_____________
3x+6y+nx+2ny
Click here to see answer by stanbon(57967)

Question 194996: (5x-18)+(4x+7)
Click here to see answer by checkley77(12569)

Question 194995: (3x-14)+(2x+9)
Click here to see answer by RAY100(1637)

Question 195559: 3sqrty4^/^6sqrty^5 the only thing is the 3 and the 6 are the little numbers in on top of the leg of the square root sign the 4 and 5 is above the letter y's
Click here to see answer by user_dude2008(1861)

Question 195788: i want to know when you have a problem like (3xz^3)2 divided by x^4z^6 do you multiply the outside exponent (2) or is it added to the inside exponet is it
2 x 3 or 2 + 3 ?
Click here to see answer by checkley77(12569)

Question 196280: -[4x+3(4x+2)-2(x-4)]

Click here to see answer by anantha(86)

Question 196970: A food store makes a 9-lb mixture of peanuts, cashews, and raisins. Peanuts cost $1.50 per pound, cashews cost $2.00 per pound, and raisins cost $1.00 per pound. The mixture calls for twice as much peanuts than cashews. The total cost of the mixture is $13.00. How much of each ingredient did the store use?
Click here to see answer by Edwin McCravy(8999)

Question 197141: a strawbroom is made up a broom handle and broom shafts attached to the end of the broom. if the total length of the straw broom is broom is 63 inches. write and expression for the length of the handle if the broomcorn shafts are x inches long.
Click here to see answer by stanbon(57967)

Question 197163: a retailer wants a 70% markup on the selling price of an item that costs him $50. write the equation for the selling price in words. write the equation using x selling price.
Click here to see answer by solver91311(17077)

Question 197664: please multiply

4a^2b(5ab^3)

thank you
Click here to see answer by jim_thompson5910(28715)

Question 197684: simplify

5-3(4-6)^2

thank you
Click here to see answer by jim_thompson5910(28715)

Question 197711: Evaluate -5a+b^2 for a= -3 and b = -2

thank you
Click here to see answer by jim_thompson5910(28715)

Question 198212: If sally can paint a house in 4 hours and john can paint the same house in 6 hours how long will it take for both of them to paint the house together?
Click here to see answer by solver91311(17077)

Question 198296: Simplify. Assume that no denominator is zero. Each variable represents a real number.
5 * 58 - 7 * 58 - (-58)
Click here to see answer by jim_thompson5910(28715)

Question 198435: You desposit $5000 in an account that pays 7% annual interest compounded continuously. What is the balance after 2 years?
Click here to see answer by Alan3354(31529)

Question 198433: If you simplify the expression 5e^x/6e, what would it be?
Click here to see answer by josmiceli(9817)

Question 198434: If you simplify the expression 12e^x/e^4x, what would it be?
Click here to see answer by josmiceli(9817)

Question 198511: If leah is 6 years older than sue, and john is 5 years older than leah and the total of their ages is 41--then how old is Sue?
Click here to see answer by josmiceli(9817)

Question 198588: 9{[5(c-4)+15]-[3(5c-2)+4]}=
I have been working on problems lke this one for the last couple of days. Can you please help me understand what Im doing here and how to get the correct answer. Im easily confused with this type of problem but appreciate ANY help on getting me to understand it. Thanks, Kristie
Click here to see answer by arallie(162)

Question 198668: I keep getting wrong answers for the following problem: 6+4[5-3(7+2)-6]=
Click here to see answer by solver91311(17077)

Question 198997: How much less than x + 4 is x - 5 ?
Click here to see answer by RAY100(1637)

Question 199019: The expression (3x+4)(2x-6) is equivalent to
1)6x²-24
2)6x²-10x-24
3)3x²-12x-24
4)2x²+8x-24
Click here to see answer by jim_thompson5910(28715)

Question 199014: The expression 5-2(x+1) is equivalent to
1)3x+3
2)3x+1
3)3x-2
4)3-2x
Click here to see answer by nerdybill(7008)

Question 199011: Which expression is undefined if x=2?
1)1 over x+2
2)1 over x-2
3)2 over x
4)x-2
Click here to see answer by solver91311(17077)

Question 199180: translate "the difference between a number and eight is fifteen" into an equation and solve.
Click here to see answer by mgmoeab(32)

Question 199180: translate "the difference between a number and eight is fifteen" into an equation and solve.
Click here to see answer by nitin.thacker(3)

Question 199178: I have tried to work this out and I keep getting the wrong answer please show me step by step how to do this problem?
4+2[1-5(x-2)]=2(x+1)
Click here to see answer by nitin.thacker(3)

Question 199179: please show me step by step how to do this problem:
4-(8-5x)=3x-8
Click here to see answer by nerdybill(7008)

Question 199332: 8x+2=7(x-4)+6
Click here to see answer by RAY100(1637)

Question 199346: -6r + s - rs r=5 s=7
Click here to see answer by RAY100(1637)

Question 199345: if y times 1 minus x=z than what is x?
Click here to see answer by solver91311(17077)

Question 199345: if y times 1 minus x=z than what is x?
Click here to see answer by RAY100(1637)

Question 199349: 4(P-9)=64
Click here to see answer by RAY100(1637)

Question 199391: Which expression is equal to 1/5?
[A]-5^2 [B]5^-1 [C]5^-2 [D]-5^1 [E]1/5^-1
Click here to see answer by stanbon(57967)

Question 199412: the quotient of 5 and a nonzero number.
Click here to see answer by solver91311(17077)

Question 199480: Can this be solved? x/2 + 6x = 7(2x-8)

Click here to see answer by ankor@dixie-net.com(15746)

Question 199512: Simplify: 6x^4y^6/-3x^3y^7
Click here to see answer by rfer(12730)

Question 199646: Cardinals World Series tickets were selling at 15 times more than the highest ticket at face value- others were about 8 times the lowest face value. Pete Moran paid $400 for the lowest ticket at face value. Dennis Spivey paid 9 3/8 times the amount paid by Pete. How much did Dennis pay for his ticket?
I know Dennis paid 3,750.. but how?
Click here to see answer by ankor@dixie-net.com(15746)

Question 199378: What expression is equal to 1/5?
Click here to see answer by Mathtut(3670)

Question 199902:

Click here to see answer by rfer(12730)

Question 200030: 3-3(r+1)

Click here to see answer by jim_thompson5910(28715)

Question 200152: Find the corresponding y values for x= -2, -1, 0, 1, 2, 3 if y= x2-x-2.
Click here to see answer by jim_thompson5910(28715)

Question 200325: Evaluate the functions for the values of x given as 1,2,4,8,and 16. Rank in order from fastest to slowest the rate at which each function changes with increasing values of x.
f(x)=2x-5
f(x)=x^2-4x+3
f(x)=x^3+4x^2-2x-3
f(x)=7^x
f(x)=logx
Click here to see answer by Alan3354(31529)

Question 200339: 8+6x given x=5
Click here to see answer by jim_thompson5910(28715)

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