Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 240219: I am having trouble figuring out this equation which is 9x-2x=-42 could you please help me. Thank-you!
Click here to see answer by unlockmath(1599)

Question 240288: Solve using the addition and multiplication principles. thanks
-6r + 3 ≤ -3(4r - 9)
Click here to see answer by solver91311(16868)

Question 240293: Solve the formula for the indicated letter. thanks
P = s1 + s2 + s3 for s3 (Points :2)
Click here to see answer by solver91311(16868)

Question 240283: hello my name is anthony and i need help with this problem cuz i am new at this and so here it is and explain it the best way you can step by step?

5(2x+3)=4(x-1)+1
Click here to see answer by rfer(12644)

Question 240294: A= 1/2h (b1+b2 for b1 Please help,
solve the problem for the indicated letter
Click here to see answer by solver91311(16868)

Question 240294: A= 1/2h (b1+b2 for b1 Please help,
solve the problem for the indicated letter
Click here to see answer by Alan3354(30959)

Question 238567: Solve by the elimination method.
4x-9y=6.5
7y-2x=-4.5
Click here to see answer by Alan3354(30959)

Question 240364: Please help me understand the steps for solving this problem. The value of a two-digit number is twice as large as the sum of its digits. If the digits were reversed, the resulting number would be 9 less than 5 times the original number. Find the original number.
Click here to see answer by scott8148(6628)

Question 240430: what do you do if a minus sign is next to a parenthesis?
Click here to see answer by vleith(2825)

Question 240455: i am doing a problem. here is the equation, x^2+8x i cant find out what this type of problem is called. like is it a ex. parabola?
Click here to see answer by Alan3354(30959)

Question 240443: Solve the equation.
(y - 11) - (y + 6) = 8y

Click here to see answer by checkley77(12569)

Question 240535: Please help me solve by the elimination method
x+3y=16
-x+8y=17
Click here to see answer by solver91311(16868)

Question 240544: Please help me solve using the substitution method
7x+3y=-25
-7x+y=29
Click here to see answer by unlockmath(1599)

Question 240587: Solve and state properties
c) 2(3x-1)-5(2x+3)=4x-7
I know that distributive property has to take place but afterwards I don't know what to do.
thank you

Click here to see answer by rapaljer(4667)

Question 240623: Bruce receives a weekly salart of $350. Hel also recieves a 6% commission on the total dollar volume of all sales he makes. What must his dollar volume be in a week, if he is to make a total of $710.?
Click here to see answer by checkley77(12569)

Question 240686: Please help me out with this problem:
(1/x-4) + (4/4x-4) = 5/4

I don't know what the LCD would be, so I am unable to find the solution(s).
If you could please help me, it would be greatly appreciated!
Click here to see answer by Theo(3458)

Question 240692: John is 13 years less than 3 times as old as his son. Six years ago, he was 14 years more than twice as old as his son was then. How old is John?
Click here to see answer by nyc_function(2733)

Question 240759: 3(x+2)=x-18. What does x equal?
Click here to see answer by edjones(7569)

Question 240799: Write the equation of a circle with center at (-5, 2) and radius 5. Please help.
Click here to see answer by vleith(2825)

Question 240757: Solve for x and y.
4x+9y=365
Click here to see answer by Alan3354(30959)

Question 240788: What is y in this equation 3/2y - y =4 + 1/2?

Click here to see answer by Alan3354(30959)

Question 240848: please help me solve 2/A = 3A/(5A-14)
Click here to see answer by checkley77(12569)

Question 241030: Factor each polynomial completely.
a^4 - ab^3 =
This is what I tried and I am not sure it is correct?
a^2a^2/a^2b^1 = a^2/b^1 I don't think this is the correct formula but I am not sure. Any help would be really appreciated.
Click here to see answer by rapaljer(4667)

Question 241067: How do we solve 2q^3 - 8q^2 - 4950 = 0?
Click here to see answer by vleith(2825)

Question 241107: Factor completely, if a polynomial is prime state this: thank you
2t^2-7t-4
Click here to see answer by vleith(2825)

Question 240985: three times one number plus -7 times another number equals 21
Click here to see answer by ankor@dixie-net.com(15624)

Question 241254: 4(3-m)=5(2m+1)
Click here to see answer by jim_thompson5910(28476)

Question 240367: 3(x-3)=4x-11
Click here to see answer by College Student(505)

Question 241275: (x-1/x)=5 find the value of x2+1/x2=? here i wrote x square not x 2 please note that.Thanks
Click here to see answer by rapaljer(4667)

Question 241344: Multiply. thank you
(xy + 3)(8xy - 2)
Click here to see answer by checkley77(12569)

Question 241343: Solve the problem. If necessary, round to the nearest tenth.
On a sunny day, a tree and its shadow form the sides of a right triangle. If the hypotenuse is 35 m long and the tree is 28 m tall, how long is the shadow?
Click here to see answer by checkley77(12569)

Question 241342: Factor by grouping, if possible. thank you
x^3 + 3x^2 + 8x + 24
Click here to see answer by Earlsdon(6287)

Question 241342: Factor by grouping, if possible. thank you
x^3 + 3x^2 + 8x + 24
Click here to see answer by unlockmath(1599)

Question 241341: Solve using the principle of zero products. thank you
(21 - 0.8x)(5 - 0.4x) = 0
Click here to see answer by stanbon(57219)

Question 241367: Factor completely. If the polynomial is prime, state this. thanks
48x^2 + 40xy - 48y^2
Click here to see answer by josmiceli(9649)

Question 241368: Perform the indicated operation. thanks
(42k^3 + 12^k2 + 18k) ÷ (6k)
Click here to see answer by stanbon(57219)

Question 241368: Perform the indicated operation. thanks
(42k^3 + 12^k2 + 18k) ÷ (6k)
Click here to see answer by josmiceli(9649)

Question 241433: 12(y-1)-4y=3(2y-2)+9y
can u solve this equation
Click here to see answer by jim_thompson5910(28476)

Question 241381: Can someone please tell me what I did wrong, IF I did indeed do anything wrong?
This is the equation:
(4x/x-2) = x+ (8/x-2)
This is what I did to get my answer:
(4x/x-2) = x+ (8/x-2)
4x = x(x-2) + 8
4x = - 2x + 8
-4x -4x
- 6x + 8
(x-4)(x-2)

Your help would be greatly appreciate, as I desperately need it!

Click here to see answer by Alan3354(30959)

Question 241466:
Click here to see answer by stanbon(57219)

Question 241466:
Click here to see answer by jvurzua(1)

Question 241380: I need to factor 2x with exponent of 2 -4x-32=0
Click here to see answer by checkley77(12569)

Question 241506: evaluate (-6c)^2 and 6c^2 when c = 10
Click here to see answer by stanbon(57219)

Question 240561: In one season, Kim ran 18 races. This was four fewer races than twice the number of races Kelly ran. How many races did Kelly run?
Click here to see answer by College Student(505)

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