# Questions on Algebra: Equations answered by real tutors!

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 Algebra: Equations Solvers Lessons Answers archive Quiz In Depth

 Question 169367: You have 3 gallons of punch that is 7% alcohol. A friend pours in 3 gallons of their punch and now the combined mix is 9% alcohol. What % alcohol was the added 3 gallons of punch? Click here to see answer by Mathtut(3670)

 Question 169530: make p the subject of the formula: d=p/l+p Click here to see answer by midwood_trail(310)

 Question 169615: Is the equation 6x-3=39 7? how do you do 3y-7=5y+1? how do yo do 6x-4(3x+8)=16? Click here to see answer by Mathtut(3670)

 Question 169658: Remove parenthesis first. Then collect like terms. Solve for the variable. 2/5(3x+9)=3(3-3x)+15 Click here to see answer by stanbon(57377)

 Question 169637: Remove parenthesis first. Then collect like terms. Solve for the variable. 2/5(3x+9)=3(3-3x)+15 Click here to see answer by jim_thompson5910(28595)

 Question 169623: Solve each system by substitution. Determine whether the equations are independent, dependent or inconsistent: y= x+4 3y-5x=6 Click here to see answer by Mathtut(3670)

 Question 169622: Solve each system by substitution. Determine whether the equations are independent, dependent or inconsistent: y= -4x-7 y= 3x Click here to see answer by checkley77(12569)

 Question 169621: Solve each system by substitution. Determine whether the equations are independent, dependent or inconsistent: y= -3x+19 y= 2x-1 Click here to see answer by stanbon(57377)

 Question 169718: A rectangular plot has been fenced with 500ft of wire. Find the length and width of the plot if the length is 4 more than twice the width. Be sure to show both length and width along with units in your answer. Click here to see answer by midwood_trail(310)

 Question 169715: 2/3 = 2 - 5x - 3 over x - 1 Click here to see answer by midwood_trail(310)

 Question 169844: I apologize in advance, but I am unsure as to the type of problems these are. 1. Simplify (2x^7y^2/4xy^3)^3 I know that 2/4 is 1/2 but I do not know how to simplify the exponents inside the parenthesis or the cubed exponent on the outside of the parenthesis. 2. I have no idea where to begin on this problem If 2x + 2 is >= 5x + 11 then? How do you solve this problem. Thank you in advance!! Click here to see answer by checkley77(12569)
 Question 169844: I apologize in advance, but I am unsure as to the type of problems these are. 1. Simplify (2x^7y^2/4xy^3)^3 I know that 2/4 is 1/2 but I do not know how to simplify the exponents inside the parenthesis or the cubed exponent on the outside of the parenthesis. 2. I have no idea where to begin on this problem If 2x + 2 is >= 5x + 11 then? How do you solve this problem. Thank you in advance!! Click here to see answer by stanbon(57377)

 Question 169495: Solve each system by addition:determine if the equation is independent, dependent or inconsistent x-y=3 -6x+6y=17 Click here to see answer by stanbon(57377)

 Question 169470: john is 6 years younger than joe. the sum of their ages is 26. write the equation Click here to see answer by jojo14344(1512)

 Question 170008: Can someone show me how to solve this problem I really be grateful to you. I want to thank you in advance for your help. show me step by step.. I don't know where to start. y/6 + 1 = 9 Click here to see answer by jim_thompson5910(28595)

 Question 170017: where do I begin with this problem? xsq+3x=4 Click here to see answer by jim_thompson5910(28595)
 Question 170017: where do I begin with this problem? xsq+3x=4 Click here to see answer by midwood_trail(310)

 Question 170031: Write the equation of a line in slope-intercept form with the slope of -2/5 and y-intercept (0, -3). Click here to see answer by checkley77(12569)

 Question 170030: ) Find the slope and the y-intercept of the line represented by the equation: -3x + 4y = 8 Click here to see answer by checkley77(12569)

 Question 170029: For the following equation: 3x – 2y = 11: Find x if y = 2 Find y if x = 1/3 Present the solutions as ordered pairs. Click here to see answer by checkley77(12569)

 Question 170028: Verify that the ordered pair (2, 4) is a solution to the equation 3x + 4y = 22 Click here to see answer by checkley77(12569)

 Question 170027: I have five questions I need help with. Can't remember how to begin the problems Given the following equation, 3x – 6y = 18; solve for y. Click here to see answer by midwood_trail(310)
 Question 170027: I have five questions I need help with. Can't remember how to begin the problems Given the following equation, 3x – 6y = 18; solve for y. Click here to see answer by checkley77(12569)

 Question 170079: Can you please help me? The problem is: The area of Lake Michigan is 9420 square miles less than the area of Lake Superior, which is about one-fifth the size of the Caspian Sea(about 150,000 sq mi.) Write and solve an equation to find the approximate area of Lake Michigan. Thanks! Click here to see answer by nerdybill(6962)

 Question 170127: For the following equation: 3x - 2y = 11 Find x if y = 2 find y if x = 1/3 Click here to see answer by jim_thompson5910(28595)