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

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Question 956907: The difference of 5 and 8 is equal to the quotient of 6 and a number, plus 7. Translate the following written statement into an equation

Click here to see answer by josmiceli(19441)

Question 956852: Make the following equation true by inserting 1 or more parentheses. Show all your steps to prove your answer.
-12+2*-1^2+-3^2-9/2=-7
Click here to see answer by Theo(13342)

Question 957135: what are the first four terms of the sequence represented by the expression n(n-1)-5
Click here to see answer by Fombitz(32388)

Question 957414: 20/2(5+5)

Click here to see answer by stanbon(75887)

Question 957892: "CONCEPT REVIEW PROBLEMS"
I don't really understand this! Could someone really, explain me what should I do when I encounter this type of problems? I get stuck every time I see this.
This is the problem: "For all real numbers a and b, let a*b=a+3b. Compare: A. (2*0)*5 B. 2*(0*5)."
Possible answers: A if "A" is greater. B if "B" is greater. C if "A" is equal to "B," and D if not sufficient information is given to figure out an answer at all.
I think I understand that "*" is only a symbol, not really the sign for multiplication. But I don't really know what to do. Help?
Thank you in advance.
Click here to see answer by Theo(13342)

Question 943935: what is 2(x+1)

Click here to see answer by EdenWolf(517)

Question 931857: write an expression that is equivalent to 3(g+2d) +4d

Click here to see answer by EdenWolf(517)

Question 958463: For the function f defined by f(x)=x^+7 evaluate each expression
1.1 f(3a)
1.2 f(b-1)
Click here to see answer by Alan3354(69443)

Question 951776: 6x-4x[1-3(x-3)]
Click here to see answer by EdenWolf(517)

Question 958677: determine whether (3,10) is a solution of 7x-y-15=0 . yes or no?
Click here to see answer by josgarithmetic(39623)

Question 958677: determine whether (3,10) is a solution of 7x-y-15=0 . yes or no?
Click here to see answer by amarjeeth123(570)

Question 958698: For the function f(x)=x^2+7 evaluate the expression:
F(3a)
F(b-1)
Click here to see answer by Fombitz(32388)

Question 958760: Evaluate the following expression when n=14.
4|5-n| - |-4|
A. 36
B. 0
C. 32
D. -24
Click here to see answer by Fombitz(32388)

Question 960471: if x-1 and x+1 are both factors of the equation x^3+px^2+qx+6=0
Click here to see answer by josmiceli(19441)

Question 961355: 2-6(-9) and
8*12.3
Click here to see answer by EdenWolf(517)

Question 961972: Which expressions are equivalent to-3-(7.5+4)?

Click here to see answer by checkley77(12844)

Question 962162: Which expression below is equivalent to 6/5x + 6 3/5?
A. 6/5(x+3)
B. 3/5(2x + 11)
C. 3/5(2x + 6)
D. 2/5(3x + 5)
Click here to see answer by MathLover1(20850)

Question 962655: Evaluate the expression 3/8 divided by 1 1/2
Click here to see answer by hkwu(60)

Question 962755: Find two numbers whose difference is 60 and whose product is as small as possible. [hint: let x and x-60 be the two numbers. their product can be described by the function f(x)=x(x-60).]
Click here to see answer by hkwu(60)

Question 963163: (3x)^2+wz-6x=
w=3 x=6 y=5 z=9
evaluate
Click here to see answer by MathLover1(20850)

Question 963532: use f(x)=4x-6 and g(x)=5x^2 to evaluate each of the following
A) (f+g)(5)
b) (f-g)(-7)
c) (fg)(6)
d) (f/g)(0)
Click here to see answer by MathLover1(20850)

Question 939098: I take the variable b, double it, and add 4. I subtract 4b from this new expression, and divide the resulting difference by two. What is my final expression in simplest form?
Click here to see answer by EdenWolf(517)

Question 921755: 3(2-0.9h)+ (-1.3h-4)
Could you help me solve this problem - 7th grade
Click here to see answer by EdenWolf(517)

Question 964620: hello, my gcse's are coming up and i still don't understand how to simplify words and numbers. e.g.. t x w x 4 = ? could you please help me find an good method for intermediate simplifying. thanks , josey x
Click here to see answer by josgarithmetic(39623)

Question 965084: Sal added3 gallons of gas to a tank,which made the tank half full. A full tank containef f gallons. How many gallons were in the tank originally
Click here to see answer by josgarithmetic(39623)

Question 965211: simplify (x+3) / sqrt(x^2+6x-8)
Click here to see answer by josgarithmetic(39623)

Question 965329: Find an equation of the circle with center at (-3,5) and radius of 4.
Click here to see answer by lwsshak3(11628)

Question 965329: Find an equation of the circle with center at (-3,5) and radius of 4.
Click here to see answer by Alan3354(69443)

Question 965425: if f(x)=x^2+6 and g(x)=2x,find
a. (f+g)(x)
b. (f-g)(x)
c. (f x g)(x)
d. (f/g)(x).
Click here to see answer by t0hierry(194)

Question 965430: if f(x)=x and g(x)=x-5,find
a. (f+g)(x)
b. (f-g)(x)
c. (f x g)(x)
d. (f/g)(x)
Click here to see answer by t0hierry(194)

Question 965430: if f(x)=x and g(x)=x-5,find
a. (f+g)(x)
b. (f-g)(x)
c. (f x g)(x)
d. (f/g)(x)
Click here to see answer by amarjeeth123(570)

Question 966616: Find the difference of the expression below.
(-5x^2+2x+4)-(-4x+3)
Click here to see answer by ikleyn(52831)

Question 966757: Please help me solve this:
x-{2x-[-x-(1+x)]}
Click here to see answer by MathLover1(20850)

Question 967131: Which expressions are equivalent to 11+5(x - 3)
Click here to see answer by amarjeeth123(570)

Question 967311: Evaluate the expression for the given value of the variable.
34.5x when x=4.2
Click here to see answer by josgarithmetic(39623)

Question 967945: which expressions is equivalent to 1-1/3(6x-9)
I got 4x-2, is this correct?
Click here to see answer by macston(5194)

Question 968042: if f(x)=X^2 + 8x + 1 and g(x)=2x, find the following composition
(f g)(3)
Click here to see answer by amarjeeth123(570)

Question 968049: find (f g)(x) and (g f)(x).
f(x)=-2x^2 + 1, g(x)= -2x
(f g)(x)=
Click here to see answer by amarjeeth123(570)

Question 968048: if g(x)=-4, h(x)=x, find the composition.
(g h)(0)
Click here to see answer by amarjeeth123(570)

Question 968046: if f(x)=X^2-6x + 2 and g(x)=-2x, find the following composition.
(g f)(5)
Click here to see answer by amarjeeth123(570)

Question 968179: Can someone please show me in detail how to do this? Thanks so much in advance!
3(x + 2) + 4(x - 5) = 10

Click here to see answer by Fombitz(32388)

Question 4395: I am having a very hard time understanding the addition property of equality.
for axample 3x - 5 + 2x - 7 + x = 5x+2
The book says that the answer is 14, but how do you reach that point?
Click here to see answer by JimMarshall(82)

Question 3556: Question - How do I go about solving this problem??
3(4-6)^2-2(4-3)
Click here to see answer by JimMarshall(82)

Question 4858: What is the correct evaluation?
-4t for t = -10
Click here to see answer by JimMarshall(82)

Question 6132: x^2 + 2x - 15 = 0
Click here to see answer by JimMarshall(82)

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