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Question 125705: The sum of two numbers is 33. Their difference is 9. What are the two numbers?
Click here to see answer by solver91311(24713)

Question 125705: The sum of two numbers is 33. Their difference is 9. What are the two numbers?
Click here to see answer by MathLover1(20850)

Question 125748: 7x+2y=9
3x+8y=11

Click here to see answer by jim_thompson5910(35256)

Question 125798: Given f(x)= 5x^2-3x+1, find f(-2)
Click here to see answer by bucky(2189)

Question 125797:
The difference of two numbers is 91. THe second is 5 less than 5 times the first. What are the two numbers?
Click here to see answer by Earlsdon(6294)

Question 125797:
The difference of two numbers is 91. THe second is 5 less than 5 times the first. What are the two numbers?
Click here to see answer by checkley71(8403)

Question 125832: This is my son'd hoework assignment, in the back of the book on page 803 in the extra practice section he has to solve proble # 18using linear combinations to solve linear equations. The problem is:
3x+7y=-1
7y=-6x
If I rearrange the equation to solve it looks like this:
3x+7y=-1
-6x-7y=?
Now what do we do?
Click here to see answer by checkley71(8403)

Question 125948: Write an equation in standard form of the line that passes through (7,-3) and has a y-intercept of 2.
Click here to see answer by josmiceli(19441)

Question 125976: I am hoping you can help me with this one, I think I got the right answer, but my grade is falling rapidly and I need to check to see if it is right so that I don't make silly mistakes that cost me.
The question is from a worksheet:
Solve the system by substitution
2x+2y=0
y=4x +0
I came up with y=4x
Is this even close. I am paranoid now about the answers I get so I just want to make sure I am doing them right. Thanks so much.
Click here to see answer by jim_thompson5910(35256)

Question 125969: What is the slope intercept form of the problem 2=3x-y?
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Question 125968: what is the slope intercept form of x-4=-y?
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Question 125966: What is the slope intercept form of 7x+7y=14?
Click here to see answer by jim_thompson5910(35256)

Question 125964: What is the x intercept and y intercept of the problem x-y=12?
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Question 125984: 3x-2<13=
-
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Question 125998: I have to determine the number of solutions and identify the type of system, as well as checking my work. I am not sure how to check my work. Can someone help me?
-6x+2y=4
3x-y=-4
Click here to see answer by jim_thompson5910(35256)

Question 126086: Using the graphing method how many solutions does this system have. 6x-2y=4
12x-6y=8
Click here to see answer by jim_thompson5910(35256)

Question 126515: I hope this is posted in the correct place. I need some help I do not understand how to do this. Thanks for any help you can give.
solve by elimination process.
0.3x -0.2y = 4
0.5x + 0.3y = 5
What is the solution of the system. It asks for an ordered pair. Thanks so much.
Click here to see answer by stanbon(75887)

Question 126654: 2x+3y=1
5x+3y=16 Solve, state if inconsistent or dependent
3y=2x+1
divide both sides by 3y=
y=2x+1/3
y=2x/3+1/3
confused on the LCM...6?
I believe once I reduce the top I then add the y into the bottom equation of
5x+(3)( y )x+(3)(y)=16
I can not go any further because I am confused on the LCM of the first equation
Click here to see answer by solver91311(24713)

Question 126657: 8x-4y=16
y=2x-4
Solve by substition
4y=8x-16
divide both sides by 4y
y=8x-16/4
y=8x/4+16/4
y=4x/2+16/4
reduce
y=2x+4
Upon plugging top equation of y into bottom equation, I became confused I came up with
y=2x-4 and y=2x+4
I must have done something wrong along the line

Click here to see answer by bucky(2189)

Question 126659: Solve the linear equation, give its solution set, and state whether the equation is conditional, identity, or inconsistent.
1/2(p+5)-4 = 1/3(2p-1)
Click here to see answer by jim_thompson5910(35256)

Question 126656: 8x-4y=16
y=2x-4
Solve by substition
4y=8x-16
divide both sides by 4y
y=8x-16/4
y=8x/4+16/4
y=4x/2+16/4
reduce
y=2x+4
Upon plugging top equation of y into bottom equation, I became confused I came up with
y=2x-4 and y=2x+4
I must have done something wrong along the line

Click here to see answer by jim_thompson5910(35256)

Question 126655: x+5y=10
-2x-10y=-20
5y=x+10
divide by 5, each side
y=x+10/5
y=x/5+10/5
Problem with LCM
I then plug y into next equation
-2x-10(y equation)+ -10 (y equation)=-20
Need help to make sense out of LCM to finish problem
Click here to see answer by jim_thompson5910(35256)

Question 126651: Find values of m and b so that the solution is (-3,4). 5x+7y=b mx+y=22
I have come up with m(-3)+4=22 -15+28=6 13=b m=6
Click here to see answer by madhan_math(34)

Question 126864: what is the correct answer to the following below:
y=2x
Click here to see answer by edjones(8007)

Question 126897: What is the correct answer to the problem see below:
x+y=12
Click here to see answer by MathLover1(20850)

Question 126905:
7x-2y=-2 3x-3y=7
Solve the following system of linear equation by elimination
Click here to see answer by checkley71(8403)

Question 126940: Given the system of equations 2x-4y=10 and 26x-52y=130
a.) How many solutions does the system have?
b.) Find the solution(s).
Click here to see answer by jim_thompson5910(35256)

Question 127041: I need help with what is the slope of the line passing through the given points
(-3,5)and (3,-2)
Click here to see answer by jim_thompson5910(35256)

Question 127040: I need help finding the distance between pair of points
(3,1), (-2,-2)
Click here to see answer by jim_thompson5910(35256)

Question 127059: Please help I am not understanding:
-6(x+1)+4=16
(-6x+6)+4-4=16-4=12
x=12
??
Thank you in advance
Click here to see answer by stanbon(75887)

Question 127125: I keep coming up with an false answer for this problem
.01x+3.1=2.03x-2.96
Click here to see answer by jim_thompson5910(35256)

Question 127163: I hope this is posted in the correct place. I need some help I do not understand how to do this. Thanks for any help you can give.
solve by elimination process and type an ordered pair.
4x - 9y = 14.5
7y - 2x = -8.5
Click here to see answer by solver91311(24713)

Question 127160: Requesting assistance writing an equation for the following problem:
4 tickets sell for $63.00
6 tickets sell for $91.00
Can an equation be written for calculating the cost of any number of tickts?
Thanks! Jon
Click here to see answer by josmiceli(19441)

Question 127281: 5. Solve for x:
(x � 7)/5 � 5/2 = (x + 9)/10

Click here to see answer by checkley71(8403)

Question 127280:

6. Translate to an algebra statement; do not solve:
Three times the difference of five and a twice a number yields the same result as the same number increased by four.

Click here to see answer by checkley71(8403)

Question 127277:
2. Combine like terms:
7x2 + 9x � 4x2 � 2 + 6x � 2x2 + 8

Click here to see answer by checkley71(8403)

Question 127272: 1. Name the property of real numbers illustrated below. Be specific with the naming (include �of addition� or �of multiplication,� if applicable).
7 + 13 = 13 + 7

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Question 127392: the mansfield tigers were playing the cougars on Friday Fight. Tickets wnet on sale at four o'clock on Thursday afternoon. Adult tickets sold for five dollars and student tickets cost 3.50. The total proceeds from Thursday's ticket sales were 155. if 37 tickets were sold on Thursday, how many were adult tickets and how many were adult tickets and how many were student tickets?
Click here to see answer by ankor@dixie-net.com(22740)

Question 127468: Using systems of equations(addition/elimination or substitution) solve this problem.
A Honda Accord gets approximately 26 mpg on the highway and 19 mpg in the city. Bill drove 349.5 miles on a full tank (16 gallons) of gasoline. Using a two equation system of equations, determine approximately how many miles were driven in the city and on the highway.
I tried dividing 349.5 by 16 gallons to get mileage and using the following equations. 26H + 19C = 21.84 and H + C = 349.50
Click here to see answer by josmiceli(19441)

Question 127882: Graph the system of 5x � 2y < 10, x + 2y > -2, x � y > -4
Where do I begin and how do I graph? I have been having a difficult time with graphing.

Click here to see answer by stanbon(75887)

Question 127890: graph y=4
Click here to see answer by jim_thompson5910(35256)

Question 127888: graph x=y
Click here to see answer by jim_thompson5910(35256)

Question 127896: graph x+y=0
Click here to see answer by jim_thompson5910(35256)

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