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

Tutors Answer Your Questions about expressions (FREE)

Question 507638: seven added to two-third of a number
Click here to see answer by jim_thompson5910(28536)

Question 507716: 9(2x+5)+6=6=3x
Click here to see answer by jim_thompson5910(28536)

Question 507794: A number of people bought a 300-hectare farm which they shared equally. if the number of hectares per person was 5 less than their number,find the number of people?
Click here to see answer by Earlsdon(6287)

Question 497754: formula,solve for the variables indicated. p=s + t + u for u
Click here to see answer by jim_thompson5910(28536)

Question 508523: not sure what I need to do, i need to evaluate this problem,
Evaluate:
m - 6n for m = 6 and n = -3

please help
Click here to see answer by swincher4391(726)

Question 508730: 3(x+7)+2x
Click here to see answer by jerryguo41(162)

Question 508732: 4(R-1)+5R+3
Click here to see answer by edjones(7569)

Question 508964: The Smith Brothers ages multiplied together give the answer 2184. Tom is 1 year older than john. Michael is 1 year older than Tom. How old are they?
Click here to see answer by swincher4391(726)

Question 511235: What is 27n times 0

Click here to see answer by richard1234(5390)

Question 511362: Factor X^2-6x+4
Click here to see answer by Alan3354(30993)

Question 511813: -12+(-14)+27
if you had to simplify, why wouldnt the answer be 20(-14) instead of 6? because isnt 6 actually solving it?
Click here to see answer by Alan3354(30993)

Question 512104: 4y-6(2-y)=8
Click here to see answer by jim_thompson5910(28536)

Question 512393: 2x+ 3(x-5)=4-(x+6)
Click here to see answer by stanbon(57290)

Question 512394: 3x -2= 10
__ ___
x+2 x+2
Click here to see answer by stanbon(57290)

Question 512385: WHat is the correct term used when you wanna find the value of an algebraic expression by substituting a number for each variable and simplifying?
Click here to see answer by xdragonfight(116)

Question 512685: what does 6(h-4) equal?
Click here to see answer by rfer(12655)

Question 512946: what is the step for w-18=7
Click here to see answer by Alan3354(30993)

Question 513075: Simplify 3(8 + 2a) + 2 (3a +2)
Click here to see answer by umail08(87)

Question 513088: 0.06x+0.09(x+200)=63
Click here to see answer by umail08(87)

Question 513148: Can you help me write a numerical expression for 36 divided into 18
Click here to see answer by stanbon(57290)

Question 513243: I don't know if chose the right section.....
Here are her instructions:
Translate each sentence into a mathmatical equation
Here is the problem:
One half of a given number t is 10_________________________
How do you write that out?
Click here to see answer by umail08(87)

Question 513795: -4 minus -6^2?
Click here to see answer by jim_thompson5910(28536)

Question 510042: -(3y+3)-(-2y-5)=-3

Click here to see answer by jim_thompson5910(28536)

Question 514784: 18=3y
Click here to see answer by rfer(12655)

Question 515143: 0.3x + 0.3 (x+10) = 300
Click here to see answer by rfer(12655)

Question 514312: Evaluate the function f(x) = 9x - 6 for x=3
Click here to see answer by jim_thompson5910(28536)

Question 514311: Evaluate the function f(x) = 4x + 6 for x=-4.

Click here to see answer by jim_thompson5910(28536)

Question 515618: My prealgebra class is studying integers and evaluating expressions- I broke my leg last week and was not in class so I'm kinda of lost on this, can you help? here's my problem 1-3-(-2)=1+(a)+2
=-2+(b)
=C
Click here to see answer by Alan3354(30993)

Question 515766: Can you show me how to solve this problem: 6y-2+2y=14
Click here to see answer by Maths68(1474)

Question 516610: Please solve this equation and I have to show work:
a-8=2a+5/2
(The 2 would be under the entire right side of 2a+5. I wasn't sure how to put the divisor line under the entire equation.
Click here to see answer by solver91311(16877)

Question 517456: I'm not sure how to solve this:
Write an equation and solve.
Tripling the greater of two consecutive even integers gives the same result as subtracting 10 from the less even integer. What are the integers?
Click here to see answer by stanbon(57290)

Question 517726: -1/5+(-7/10)
Click here to see answer by deborabr(181)

Question 518163: Help!! This is the mom who doesn't even know how to begin to help with this...
3(1 + 4n) - 2(5n - 3) = 25
how do we find n?

Click here to see answer by jim_thompson5910(28536)

Question 518377: 8c÷6b, when c = -3 and b = -2
Click here to see answer by godeapurva(7)

Question 518475: Use an addition or subtraction formula to write the expression as a trigonometric function of one number, and then find its exact value.
cos(70°)cos(20°)-sin(70°)sin(20°)
Click here to see answer by Edwin McCravy(8895)

Question 519214: PLS ANYONE ANSWER THE FF..
1.)Euclid works 2 times as fast as his siter.Together they cleaned the house in 4 hours.How long would it take each of them to clean the house?
2.)A small pipe and a large pipe both carry water to storage tank.The large pipe fills the tank twice as fast as the small pipe.When both pipes are used,the tank is filled in 8 hrs.How long would it take the small pipe to fill the tank by itself?
3.)Working alone a man can mow a lawn in 3hours.His friend can complete the same job in 2hours.How long would it take them working together?
4.)A rope that is 20 feet long is cut into 2 pieces.The ratio of the smaller piece to the larger piece is 3/5.Find the length of the shorter piece.
5.)If 561 is divided by a certain number,the quotient is 29 and the remainder is 10.Find the number.
.need help..PLEASE!!!!!!!!!!
Click here to see answer by ankor@dixie-net.com(15646)

Question 519330: -12/3/4
Click here to see answer by Edwin McCravy(8895)

Question 519414: (x+20)(x-7)(x+4)>0
solution set?
Click here to see answer by stanbon(57290)

Question 519516:
Click here to see answer by Edwin McCravy(8895)

Question 519516:
Click here to see answer by pwday(1)

Question 519940: 6(5b + 2)(b + 2) simplified
Click here to see answer by jim_thompson5910(28536)

Question 520349: my son is in 5th grade and his home work tonight says... evaluate the exressions
when a=3 b=67 c=489 d=9570
The first problem is
1. 7c
2. 4 . c
3. 3a X b
ect.
I dont even know where to begin on how to do this!

Click here to see answer by ankor@dixie-net.com(15646)

Question 520911: Evalute the expression

(-6.77)1
Click here to see answer by deborabr(181)

Question 520999: simplify the expression 6+9(-8x+6)
Click here to see answer by jim_thompson5910(28536)

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