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

Tutors Answer Your Questions about expressions (FREE)

Question 152008: 1/2x-5/3=3/4
Click here to see answer by jojo14344(1512)

Question 152006: x/6+5=2x/3
Click here to see answer by checkley77(12569)

Question 152007: 3x/4+5=2x/3
Click here to see answer by checkley77(12569)

Question 152073: -20-3x+3x^2=0
I can't seem to find the right way to factor it!
Click here to see answer by Earlsdon(6287)

Question 152230: PLEAS HELP TO ADD GROUPING SYMBOLS TO THIS EXPRESSION TO COME OUT TO 279,936-THANKS 2*3^3+4
Click here to see answer by nerdybill(6951)

Question 152619: 1 The sum of two numbers is 12. One number is 5 times the other. Can you write the algebraic expressions for these two equations? Can you tell me what the two numbers are?
I know it is 10 and 2 but need all algebraic expressions
2. We know that if you multiply two negative numbers together you always get a positive number. We know that if you perform an arithmetic operation on rational numbers you always get a rational number as the answer. Are there any such rules for irrational numbers? Give examples.

Click here to see answer by Fombitz(13828)

Question 152740: hi.. I'm homeschooled and I ran acrossed a question today that Im' really having a problem with. the equation is this. 1/3 (1/2 x 3 1/3)- 5/6
thanks for your time.
Click here to see answer by nerdybill(6951)

Question 153179: I would want to know step by step of how to simplfy ecuation and to reduce the expresion?
1 4(2x-1)-6(x+3)
2 6a-2a+5=17
3 4(8-3w)=32-8(w+2)
Click here to see answer by oscargut(891)

Question 152779: A rectangular shape has a length-to-width ratio of approximately 5 to 3. A designer can use the expression 1/3(5w)to find th length of such a rectangle with a given width w. Find the length of such a rectangle with width 6 inches.
Click here to see answer by mangopeeler07(462)

Question 153266: 2n-7,for n=8
Click here to see answer by Edwin McCravy(8893)

Question 153286: simplify:
Click here to see answer by orca(409)

Question 153286: simplify:
Click here to see answer by jim_thompson5910(28536)

Question 153295: evaluate:
3^0
Click here to see answer by jim_thompson5910(28536)

Question 153456: the value in cents of q quarters
Click here to see answer by orca(409)

Question 153640: worksheet problem -- not in book -- could not find edition no., but the year is 1995
what order do I solve this equation
{8[12(10 +6) - 88 ] + 168} /125
Click here to see answer by stanbon(57282)

Question 153643: here is another problem from a worksheet
order of operations is confusing.
5{[15(8^2 - 24)/12]} - 6^3
Click here to see answer by Edwin McCravy(8893)

Question 153644: worksheet problem
15+{5+[(12 * 4) + (16 * 3)]-3}
15+{5+[(48)+(48)]-3}
15+{5+[96]-3}
15+{98}
113
Click here to see answer by Fombitz(13828)

Question 153761: 5[4+(12-4)/2]
Click here to see answer by checkley77(12569)

Question 153759: 2[5(11-3)]-16
Click here to see answer by checkley77(12569)

Question 153831: simplify [(1/x^2)-(1/9)]/(x-3)
Click here to see answer by orca(409)

Question 153920: evaluate -2a+6b when a = 6 and b =-3
Click here to see answer by checkley77(12569)

Question 153920: evaluate -2a+6b when a = 6 and b =-3
Click here to see answer by Edwin McCravy(8893)

Question 154014: Please show me the steps and answer in solving this
v-4(4-v) = -2(2v-1)
Parent
Click here to see answer by jojo14344(1512)

Question 154014: Please show me the steps and answer in solving this
v-4(4-v) = -2(2v-1)
Parent
Click here to see answer by checkley77(12569)

Question 154016: How would I simplify this?
p^3+3q^2-q+3p^3
Im no good at simplifing please help me.
Click here to see answer by checkley77(12569)

Question 154032: five times the sum of c and 18
Click here to see answer by checkley77(12569)

Question 154048: How would I solve for x?
4kx-7y=kx
______
k

Click here to see answer by MusicLadyToo(1)

Question 154146: -(3-10)-(6-3)
My answer is not coming out correctly.
Please see my version-
-(3+(-10))-3=
-(-7)-3=
-(-7)+(-3)= -13
The textbook gives the answer as 4. Where am I going wrong?
Thank you.
Click here to see answer by ptaylor(2048)

Question 154150: 21-[-(3-4)-2]-5
21-[-3+(-4)-2]-5
21-[-7)-2]-5
21-[-7+(-2)-5
21-(-9)-5
21+9-5
30-5
25
Textbook gives this answer as 17
What am I doing wrong?
Thank you.
Click here to see answer by stanbon(57282)

Question 154148: I have tried working this one several times. My answer does not match the textbook answer. Please help.
Thank you.
-5-[(2-3)-4]=
-5-[(2+-3)-4]=
-5-[-1-4]=
-5-[-1+-4]=
-5-(-5)=
-5+5=0
The Textbook answer is 10. My answer is 0.
Click here to see answer by ptaylor(2048)

Question 153454: the value of cents of q quarters
Click here to see answer by terbear1963(43)

Question 154277: me and my aunt keep getting different answers. this is weekend homework.
Multiply or divide. Simplify.
1) ((x^2-9)/(x^2-4x))*((2x-8)/(x+3))
2) (m^2+10m+25m)/(m^2+12m+35)
3) ((y^2+4y+4)/(y^2+3y+2))/((y^2+6y+8)/(y^2+4y+3))

Click here to see answer by jim_thompson5910(28536)

Question 154306: (x2 - 3X +2) - (3X2 - 5X -1) =

Click here to see answer by checkley77(12569)

Question 154474: Please help me evaluate this expression, not just simplify. thank you so much.
Evaluate (1/2)^3 + 1/4 - 2/3 * (1/4)^2
Click here to see answer by checkley77(12569)

Question 154552:
Click here to see answer by Alan3354(30993)

Question 154714: the number of meters in c centimeters
write an expression for the situation
Click here to see answer by stanbon(57282)

Question 154716: write this math problem out
What is a number greater than 6
Click here to see answer by Alan3354(30993)

Question 154744: when you have parentheses and an exponent, does the exponent go inside or outside?
Click here to see answer by stanbon(57282)

Question 154669: Please Help! A plumber charges a fee of $75 per service call plus $15 per hour.If h is the number of hours the plumber works, then write the expression to the total charges(c).
Click here to see answer by jojo14344(1512)

Question 154920: 7b(8+6(b-1))
Click here to see answer by orca(409)

Question 154936: x+8=12
Click here to see answer by oscargut(891)

Question 154936: x+8=12
Click here to see answer by checkley77(12569)

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