# Questions on Algebra: Equations answered by real tutors!

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 Algebra: Equations Solvers Lessons Answers archive Quiz In Depth

 Question 124042: I'm having problems trying to solve this equation. I think it's the brackets that are confusing me. 25 - [2 + 5y - 3(y + 2)]= -3(2y - 5)- [5(y-1) - 3y + 3] Click here to see answer by stanbon(57219)

 Question 123966: I need help with this Log, I asking for help in the logarithm area about 5 days ago but nothing. If someone help I appreciate I have this asig for tomorrow in the morning. Please 2.8=-log 3.5 ---- Q PLEASE!!!! Click here to see answer by ankor@dixie-net.com(15624)

 Question 123887: Problem: Manuel arranges all the seats in the auditoriums in 7 hours, while Pedro takes only 5 hours. How long will it take if they work together? I need your help about this, becuase this is our assignment. thank you Click here to see answer by ankor@dixie-net.com(15624)

 Question 124057: I really need some help on this one. thank you! t + (1/t) _________ = 1 (1/t) - 1 Click here to see answer by Gainful7(1)

 Question 124314: Find two numbers whose product is 48 and sum is 14? 2. Product -72 Sum -21 Click here to see answer by jim_thompson5910(28476)

 Question 124331: Evaluate the expression and write the result in the form a + bi. 1/(2-4i)-1/(6-2i) =____+ ____i I can't figure this out. Any help appreciated! Click here to see answer by stanbon(57219)

 Question 124383: There are 6 mystery bags and 13 ounces of weight on one side, and 6 mystery bags and 14 ounces of weight on the other side. (The jester could get in a lot of trouble for this one!) I tried 6b+13=6b+14 and came up with -1=0. I am not sure if i solved the problem correctly Click here to see answer by MathLover1(6614)

 Question 124369: 2. Suppose y=100-5x and z=x(y-1) Δy/Δx=? ∂z/∂x=? ∂z/∂y=? Δz/Δx=? Click here to see answer by Edwin McCravy(8879)

 Question 124398: I need to see the solution worked out in steps. Thank you X^3-9X+=0 Click here to see answer by jim_thompson5910(28476)

 Question 124403: Hi can I have some help finding an equation of the line with x-intercept -1 and y-intercept 8? Click here to see answer by jim_thompson5910(28476)

 Question 124431: I need some help, can somebody help me? (-1/8x^7)(-1/9x) Thanks Click here to see answer by checkley71(8403)

 Question 124438: Please help solve this problem. The polynomial 0.04h-0.018a-2.69 can be used to estimate the lung capacity, in liters, of a female with height h, in centimeters and age a, in years. Find the lung capacity of a 60 year old woman who is 150cm. tall.How much is her lung capacity? Thanks Click here to see answer by checkley71(8403)

 Question 124493: 2y - 3x = 0 , 2x - 3y = -10 Click here to see answer by checkley71(8403)

 Question 124492: 2y - 3x = 0 , 2x - 3y = -10 Click here to see answer by checkley71(8403)

 Question 124518: Solve x OVER 3 MINUS x OVER 4 = 3 Click here to see answer by checkley71(8403)

 Question 124472: I need help with logarithm 5.2=-log 2 --- P Click here to see answer by stanbon(57219)

 Question 124533: Hi Can I have some finding an equation of the line through (3, 4) with slope 5/6? Thanks Click here to see answer by jim_thompson5910(28476)

 Question 124573: Hi Can I have some help with this equation? Find an equation of the line through (-5, 6) with slope -10. Click here to see answer by checkley71(8403)

 Question 124575: Hi. Find an equation of the line through (-5, 6) with slope -10. Thanks Click here to see answer by stanbon(57219)

 Question 124578: Hi can I have some help finding an equation of the line through (9, 6) and perpendicular to the line passing through (10, 4) and (-9, 0)? Click here to see answer by checkley71(8403)

 Question 124506: Perform the indicated operation. (7x squared - 2x + 5)-(4x squared + 3x - 4) Click here to see answer by scott8148(6628)

 Question 124576: Can I have some help finding an equation of the line through (0, 9) and parallel to the line passing through (1, 7) and (-6, 3)? Click here to see answer by iluvbuilding429(41)

 Question 124684: Let A=(2,-7) and B=(8,5). Find the equation of the line that contains the midpoint of AB and is perpendicular to AB. You may write your equation in either general or slope-intercept form. I figured out the midpoint but I don't know where to go from there. The midpoint is (-3,-6). What next? Thank you for your help!!! Click here to see answer by gems(12)

 Question 124703: Write the equation of the line with slope –7 and y-intercept (0, 5). Click here to see answer by jim_thompson5910(28476)

 Question 124622: Hi! Can I have some help finding an equation of the line through (7, 8) and parallel to the line 4x - y = 5? Click here to see answer by iluvbuilding429(41)

 Question 124741: help me set up this equation (3x - 2y)to the second power (exponent)= Click here to see answer by checkley71(8403)

 Question 124801: Hi Can I have some help with this problem? Write an equation that expresses the statement. Use k as the constant of variation. A is inversely proportional to the square of t and is inversely proportional to the cube of x. Click here to see answer by stanbon(57219)

 Question 124803: Hi Can I have some help with this problem? Write an equation that expresses the statement. Use k as the constant of variation. S is directly proportional to the square root of r and is directly proportional to the square of t. Click here to see answer by stanbon(57219)

 Question 124849: solve for x x+3 ____ = t^2 t Click here to see answer by solver91311(16868)
 Question 124849: solve for x x+3 ____ = t^2 t Click here to see answer by stanbon(57219)

 Question 124844: one number is 5 times as large as another number and the sum is 78 Click here to see answer by iluvbuilding429(41)