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

Tutors Answer Your Questions about expressions (FREE)

Question 701290: (4/2)4+(1+3)
Click here to see answer by MathLover1(20850)

Question 701939: 5x - 17 = -x + 7, then x =
Click here to see answer by stanbon(75887)

Question 701945: How do you find the product of this equation (x-2y)^2?
Click here to see answer by lmeeks54(111)

Question 702352: 8q+12=4(3+2q)
Click here to see answer by MathLover1(20850)

Question 702383: 5/6+2/9

Click here to see answer by Simnepi(216)

Question 703304: 4(3x+2)-(x+5)=-3 how do I solve this for x
Click here to see answer by solver91311(24713)

Question 703304: 4(3x+2)-(x+5)=-3 how do I solve this for x
Click here to see answer by jim_thompson5910(35256)

Question 703372: 3+2b=5+3b
Click here to see answer by unlockmath(1688)

Question 704111: x^2/x^2+15 * x+6/x
multiply and simplify to the lowest terms
Click here to see answer by lynnlo(4176)

Question 704119: 2x^2-2x/8x-9 divided by x-1/8x-9
divide and simplify to the lowest terms
Click here to see answer by lynnlo(4176)

Question 704116: 2x^2-2x/8x-9/x-1/8x-9
divide and simplify to the lowest terms
Click here to see answer by lynnlo(4176)

Question 704145: factor x^2-5x=36
Click here to see answer by lynnlo(4176)

Question 704885: simplify:
2h-3k+7(2h-3k)
and...
Simplify:
7-4(x+y)+2(x-3y)
Click here to see answer by jim_thompson5910(35256)

Question 704882: evaluate:
7x-3xy for x=negative 2 and y=5
Click here to see answer by checkley79(3341)

Question 705134: why is (-3)^2 different than -3^2 in algebra?
Click here to see answer by jim_thompson5910(35256)

Question 705336: evaluate 2a2 - 3b/a when a= -3 and b= 2
Click here to see answer by solver91311(24713)

Question 705279: How do you solve -5b+y b=3 and y=-7
Click here to see answer by checkley79(3341)

Question 705456: I am having a really hard time simplifying the following expression: a(b-c)=a/b and solve for c. I thought the answer would be c = -a/b + b but I am really quite unsure on where I can simplify further.
Click here to see answer by Alan3354(69443)

Question 705496: 23 � 3(2 � 5) + (�1)
Click here to see answer by jerryguo41(197)

Question 705842: Can someone please help me with this? Thank you!
-2X^2 - 5X + 27 = 0
Melissa
Click here to see answer by jim_thompson5910(35256)

Question 705842: Can someone please help me with this? Thank you!
-2X^2 - 5X + 27 = 0
Melissa
Click here to see answer by MathLover1(20850)

Question 706122: Im trying to solve in the quadratic model section in my book this ? (v+2)(v-5)=8 there will be 2 answers but not sure how to go about it?
Click here to see answer by josgarithmetic(39623)

Question 706130: -3c-4=2
Click here to see answer by lenny460(1073)

Question 706480: Hi, I'm just a mum trying to recall how to multiply out the brackets and simplify the equation to help my son with his homework. We understand how to multiply out of brackets but, we're not confident about whether we need to + or -. For example: 2(5x+6)-5(2x+2), I'm not sure if the answer is 10x+12-10x+10 or 10x+12-10x-10 (i know we need to simplify it further, but we get stuck on this first step as we're not sure if the last calculation is -5x2 or 5x2? Just need help with understanding the rules for when it's a plus or a minus (we know that no sign equals a plus number. Would be great if you could offer some examples.Thank you so much for any help you can offer.
Rosa
Click here to see answer by stanbon(75887)

Question 706399: x^2+3x-6 x=-4
Click here to see answer by unlockmath(1688)

Question 706607: If 4�+4�+4�+4�+4�+4�+4�=1/512,then what is the value of -3/�
Click here to see answer by MathLover1(20850)

Question 706666: solve 3(x + 4) - 2(x - 1) =15
Click here to see answer by jim_thompson5910(35256)

Question 706670: solve 18 = 1-3a

Click here to see answer by checkley79(3341)

Question 706667: 18=1-3a
Click here to see answer by checkley79(3341)

Question 707056: How do I rewrite the expression using parentheses 28-3x3+4 to get the given value of 79?
Click here to see answer by josgarithmetic(39623)

Question 707158: is the equivalent expression of (7x)y, 7(xy)?
Click here to see answer by jsmallt9(3758)

Question 707115: 3t/4-t/2=1
Click here to see answer by lynnlo(4176)

Question 707083: 3+3*3-3+3
Click here to see answer by vheroli(126)

Question 695271: If a machine that prints designs on T-Shirts prints 500 shirts in 3 hours, how many hours will it take to print designs on 1,800 shirts ?
Click here to see answer by vheroli(126)

Question 686479: In my math homework, there's a question that says "the sum of three consecutive numbers is 39. What are the three numbers? Show all of your work and explain your answer." I have no idea how to work this out! Help, please!
Click here to see answer by vheroli(126)

Question 694794: 3+q(8-4q)-8q
Click here to see answer by vheroli(126)

Question 694013: How do you simplify this--->>> 3x + 6 + 5w - 4 + 2x
Click here to see answer by vheroli(126)

Question 708882: what is the awnswer to the inequality 2x+1>-5
Click here to see answer by checkley79(3341)

Question 709516: Solve the equation and check the solution -2(t-8)-(t+1)=6
Click here to see answer by jim_thompson5910(35256)

Question 709479: -6=3(65-x)
How do I figure out x?
Click here to see answer by checkley79(3341)

Question 709575: how to solve 1/2-(1/3-1/7)
Click here to see answer by josh_jordan(263)

Question 709731: I need help simplify using the distributive propery to write the expression with out paratheses -6(4a+3)+8
Click here to see answer by Alan3354(69443)

Question 709770: 24, Use the four digits given below to create an expression that equals 24, using only +.-,�, or � and parentheses. For example, 1,1, 3, 4 could be: (1+1) � (3�4)=24.
A) 2, 3, 4, 5
B) 1, 2, 2, 3
C) 1,4, 4, 4
D) 1, 3, 3, 4

Click here to see answer by ankor@dixie-net.com(22740)

Question 710181: Write this algebraic expression letting the variable be X. "The sum of 8 divided by a number and that number divided by 8." I think it is 8/X but I'm missing something with the "sum".
Click here to see answer by stanbon(75887)

Question 710660: What is p+(-8)≤ -12 ?
Click here to see answer by checkley79(3341)

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