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

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Algebra: Evaluation of expressions, parentheses

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Question 207449: Which of the following is equivalent to 9 - 3x > 4(2x - 1)?
Click here to see answer by scott8148(3385)

Question 207540: 4cubed divided by 8 minus 1 plus 5 divided by 8
Click here to see answer by rfer(2688)

Question 207555: 4cubed divided by 8 minus 1 plus 5 divided by 8
Click here to see answer by rfer(2688)

Question 207933: How do you Perform the indicated operation(s) and Simplify
(6x2y - 3xy2 + 5xy - 3) - (-4x2y - 4xy2 + 3xy + 8)
Click here to see answer by rapaljer(3625)

Question 208168: 2x2+3squared-4+3x5 = 14
Of course the 3 squared is 9, where do we place parenthesis to make the answer 14?
Click here to see answer by rapaljer(3625)

Question 208220: 2N-15
Click here to see answer by Alan3354(6097)

Question 208334This question is from textbook
: -a+(-3)
a=-5This question is from textbook

Click here to see answer by rfer(2688)

Question 208449: 2x^4+3x^3-X^2-1
_______________
x-1
Use long division to rewrite the expression
what is the remainder?
Click here to see answer by stanbon(26297)

Question 208572This question is from textbook
: can anyone help me with this problem?
evaluate xy if x=-6 and y=4?
Would you multiply -6 and 4?
Thank youThis question is from textbook

Click here to see answer by checkley77(7072)

Question 208580: Can anyone please help me with this problem? I think I am missing a step somewhere.
-8(x+1)
Thank you!
Click here to see answer by rfer(2688)

Question 208579: Can anyone please help me with the folowing problem?
6(9x-7)
Thank you
Click here to see answer by checkley77(7072)

Question 208579: Can anyone please help me with the folowing problem?
6(9x-7)
Thank you
Click here to see answer by rfer(2688)

Question 208578: Can anyone please help me with the folowinf problem?
9(5x-8)
Thank you
Click here to see answer by rfer(2688)

Question 208571: I need help on this problem. I need to know where to put parentheses to make this equation true.
16/4+2*9/3 = 6
It seems the only way to solve is guess and check, but I could not find a solution. Please help me?
Click here to see answer by rfer(2688)

Question 208535: the value in cents of 5 quarters
Click here to see answer by DRichardson(63)

Question 208881: I really need help with this question. I dont understand it!!All I was told was to simplify..
(3x^2 y^5 Z^-3)^4 (4x y^3 z^7)
^ means that it is an exponet
Thanks!!!!!!
Click here to see answer by stanbon(26297)

Question 208899: What is the number of gallons in 21 quarts?
Click here to see answer by nerdybill(2448)

Question 209111: the number of classes still open is the difference of 150 and the number of classes that are closed
Click here to see answer by Alan3354(6097)

Question 209163: what is the total cost of buying several shirts at $24.95 each?

Click here to see answer by Alan3354(6097)

Question 209161This question is from textbook Algerbra for college students
: how do you solve this problem -28 over 9 over 4This question is from textbook Algerbra for college students

Click here to see answer by rapaljer(3625)

Question 209380: Theme: 2 Sets of Parenthesis Nested within Each Other
My question: Why does answer, "36" move from (-36) when removed from parenthesis as the last operation of this solution? I need simple but rule based reference of where to study up on how to manipulate parentheses within mathematical/algebraic rules. Thank you.
My solution follows:
(9 + 3 - 4 * ( 8 + ( - 2 ) ^2) )
----
Step 1: Find 1st set of inner parenthesis ( - 2 ); No operation indicated;
Step 2: Proceed to next set of inner parenthesis: ( 8 + ( - 2 ) ^ 2 ). Process. 2 ^ 2 = 4;
( 8 + ( 4) ) = ( 12 ). Rewrite equation: ( 9 + 3 - 4 * (12) )
Step 3: All parenthesis and powers are resolved. Now proceed to Multiply, Divide; then Add, Subtract.
So, 4 * 12 = 48; Rewrite: ( 9 + 3 - 48 ). Solve: ( 12 - 48 ) = ( -36 ). Remove parenthesis: A: 36
Click here to see answer by rfer(2688)

Question 209558: (x+24)/2-6=x
Click here to see answer by kensson(7)

Question 209959: CAN ANYONE SOLVE THIS
3a+5(4a+6)
Click here to see answer by vleith(1977)

Question 209966: can anyone solve this
3a+5(4a+6)=36
Click here to see answer by vleith(1977)

Question 209966: can anyone solve this
3a+5(4a+6)=36
Click here to see answer by stanbon(26297)

Question 210465: translate eagh phrase into an algebic expression.
six minutes les than bob's time.
joans temperature increased by two degrees.

Click here to see answer by Earlsdon(4900)

Question 210548: Evaluate
-[3|-y|+|-y|] if y= -6
Click here to see answer by ichudov(404)

Question 210747: 24%3*2-3^2 The question is twenty-four divided by three times two subtract three with a two on top of it.. im srry this is my first time... i dont really get how to type in my question
Click here to see answer by Earlsdon(4900)

Question 210905This question is from textbook Practical Business Math
: 4(P-9)=64
The answer in the back states P=25
I can't figure out how they got this?
Thanks for your helpThis question is from textbook Practical Business Math

Click here to see answer by nerdybill(2448)

Question 210017: Keep 1 to 9 in order and group to equal 100
Click here to see answer by nyc_function(260)

Question 210972This question is from textbook introduction algebra
: x+5-2=11This question is from textbook introduction algebra

Click here to see answer by checkley77(7072)

Question 211236: (x-1)(x-2)(x-3)
Click here to see answer by Earlsdon(4900)

Question 211806: 124.23 ÷ 3/5 + 59.94 ∙ 1/4

Click here to see answer by rfer(2688)

Question 211806: 124.23 ÷ 3/5 + 59.94 ∙ 1/4

Click here to see answer by Earlsdon(4900)

Question 212380: (-12) - (7-(-6)) - (7-(-15)-(-10)) how is the answer -57?
Click here to see answer by math problem solving(30)

Question 212745: q#9
simplify:
4 over 15-3 over 5-5 over 6
Click here to see answer by rapaljer(3625)

Question 212775: -absoulte value -14 then -6
_________________
7+2(-3)
please help

Click here to see answer by rapaljer(3625)

Question 212076: place parentheses

36/2^2-2+3=4
Click here to see answer by rapaljer(3625)

Question 213256: X+4 /2 = 5 I can come up with the answer by looking at it, but do not know how to show the work.

Click here to see answer by nerdybill(2448)

Question 213470This question is from textbook
: solve. 7x - 3(4 - 2x)= 2(x-3)- (5-x)This question is from textbook

Click here to see answer by drj(1380)

Question 213521This question is from textbook mathematics
: 2a+7 a=7This question is from textbook mathematics

Click here to see answer by Sunshine1245(9)

Question 213668: 8z-6=18
Click here to see answer by rfer(2688)

Question 213957This question is from textbook

: Can anyone please help me solve the following problem?
12(9+5)-6 X 3
Thank you!This question is from textbook

Click here to see answer by rfer(2688)

Question 213957This question is from textbook

: Can anyone please help me solve the following problem?
12(9+5)-6 X 3
Thank you!This question is from textbook

Click here to see answer by stanbon(26297)

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