Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 227711: How would you write the line x=4 in standard form ?
Click here to see answer by drj(1380)

Question 227730: Can someone pls show me how to solve this equation using the addition/elimination process?
1.8x-2y=0.9
0.04x+0.18y=0.15
Click here to see answer by drj(1380)

Question 227739: I need help solving this equation
Solve the system
2x+5y=1
-x+6y=8
Click here to see answer by drj(1380)

Question 227738: Can you help me solve the system?
x+2y=-12
y=20-2x
Click here to see answer by drj(1380)

Question 227752: Can you help me solve this equation by substitution?
8x+2y=6
4x=3-y
Click here to see answer by drj(1380)

Question 227782: How would I solve for x?
-3x+6(x+4)=9
Click here to see answer by drj(1380)

Question 227783: How do I sovle the system?
2x+5y=1
-x+6y=8
Click here to see answer by drj(1380)

Question 227780: Can you help me Solve the problem by using addition/elimination?
1.8x-2y=0.9
0.04x+0.18y=0.15
Click here to see answer by drj(1380)

Question 227784: How do I collect the like terms?
18y+30a-9a+4y
Click here to see answer by rfer(12730)

Question 227781: How would I simplify this problem?
4{3[5(y-3)+9]+2(y+8)}
Click here to see answer by rfer(12730)

Question 227786: How would you perform the indicated operation and simplify?
6(3x+5y)
Click here to see answer by rfer(12730)

Question 227788: Find the coordinates of the x and y intercepts
x-10=4y
Click here to see answer by nerdybill(7003)

Question 227836: How do you find the prime factors of 300?
Click here to see answer by Alan3354(31518)

Question 227838: Can you help me solve the system?
x+2y=-12
y=20-2x
Click here to see answer by Theo(3504)

Question 227853: 5x+3y=12
8x+3y=9
Click here to see answer by drj(1380)

Question 227868: 4r-3=5+3r
Click here to see answer by drj(1380)

Question 227938: 2/3 (11x - 1/6) - 3/4 = 1/4 I need to cancel fractions.
Click here to see answer by checkley77(12569)

Question 227892: two added to three times a number m is the same as 18
Click here to see answer by checkley77(12569)

Question 227837: Simplify
4{3[5(y-3)+9]+2(y+8)}
Click here to see answer by checkley77(12569)

Question 227962: 2x-3/x-4=5/x-4 I attempted to solve by cross multiplying. Could you please help me by explaining how to solve for x? The problem is 2x-3 over x-4=5 over x-4.
Click here to see answer by Alan3354(31518)

Question 227834: Can you help me solve this problem by using addition/elmination?
1.8x-2y=0.9
0.04x+0.18y=0.15
Click here to see answer by checkley77(12569)

Question 227966:
Click here to see answer by jsmallt9(3296)

Question 227965:
Click here to see answer by Earlsdon(6294)

Question 227916: A man walks a certain distance at a certain rate. Had he walked 1/2 km per hour faster, he would have taken 1 hour less but if he had gone 1 km per hour slower, he would have taken 3 hours longer. Find his original rate of walking and the distance he travelled. ANS: 4 km per hour....36km. ( i want the solution plz)
Click here to see answer by ankor@dixie-net.com(15746)

Question 228008: what is the product of 52 and 451

Click here to see answer by JenniferTutors(83)

Question 228009: I need help solving this problem. I am no good with fractions. Thank you!
(b+1/4)(b+1/2)
Click here to see answer by rfer(12730)

Question 228000: The Podunk fire truck has two hoses. The length of Hose #1 is 20ft less than 4 times the length of Hose #2. The combined length of the 2 hoses is 380ft. Find the length of the longer hose
Click here to see answer by rfer(12730)

Question 227999: 1/5m+6.3=9.8

Click here to see answer by rfer(12730)

Question 228056: solve x = yz for variable y and for variable z
Click here to see answer by Alan3354(31518)

Question 228068: 7÷7y=8x+4÷7 what is the answer to this?
Click here to see answer by stanbon(57967)

Question 228134: solve and check
6m-3(m-2)=6(m+3)-4
Click here to see answer by checkley77(12569)

Question 228129: what is 1/3 of $58900.= 1*58900/3=19633.33 $
Click here to see answer by checkley77(12569)

Question 228129: what is 1/3 of $58900.= 1*58900/3=19633.33 $
Click here to see answer by mangeshpjoshi(15)

Question 227802: Hello,
I would like to make sure I have set-up the equation correctly for the two following word problems:
A factory had fixed costs of $12000 per month and a unit cost of $3.75 for every pair of ice grippers that it makes. If the factory can sell all the ice grippers it can make for $8.75 per pair, how many must be sold per month for the factory to break even?
Is the equation? 3.75+8.75x=12000
Number 2... Sally and Mark are having a friendly race with their scooters. Their scooters took off at the same time. Sally was able to go 30mph all the way to the finish line but Mark averaged only 20mph. When Sally finished, Mark still had 7.5 miles to go. How far was the finish line from the start?
Is the equation? 20+ 7.5x= 30-x
Click here to see answer by ankor@dixie-net.com(15746)

Question 228169: The width of a rectangle is one half its length. The perimeter is 54 cm. What is the width and length of the rectangle.
Click here to see answer by Earlsdon(6294)

Question 228199: 3(y-1)-1 = 2-5(y+5) solve
Click here to see answer by jim_thompson5910(28715)

Question 228200: a train leaves town a for town b, traveling at 35 mi/h. at the same time, a second train leaves town b for town a at 45 mi/h. if the towns are 320 miles apart, how long will it take for the two trains to meet? so this is the problem I need to solve. I know d= rt I represented train 1 as x and train 2 as x-10 since it went 10 mi/h slower. added them 2x-10=320 for miles apart came up with 165 miles but question was how long not miles. I am lost as to proper steps
Click here to see answer by stanbon(57967)

Question 228252: 7w-3(4w+8)=11

Click here to see answer by jim_thompson5910(28715)

Question 228254: (15+w)-2+(15+w)-2+w+5+w+5=72
Click here to see answer by jim_thompson5910(28715)

Question 228257: how do I solve 5p/7-18=-43

Click here to see answer by jim_thompson5910(28715)

Question 228242: The length of a red rectangle is 15 cm more than its width w. A blue rectangle, which is 5 cm wider and 2 cm shorter than the red one, has perimeter 72 cm. Find the dimensions of each rectangle.
Click here to see answer by drj(1380)

Question 228273: solve it plz 12-4(p-4)=3p
Click here to see answer by jim_thompson5910(28715)

Question 228295: how do i slove 7-2n=n-14 and 2(4-2r)=-2(r+5)
Click here to see answer by jim_thompson5910(28715)

Question 228297: p= 1/(a-hw)
Click here to see answer by rapaljer(4667)

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