Questions on Algebra: Linear Equations, Graphs, Slope answered by real tutors!

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Question 15637: find two consecutive intergers such that the sum of the first and 3 times the second is 55
Click here to see answer by pwac(253)

Question 15585: Not sure if this is a linear equation as it has an unknown exponent, but hope you can help with solution.
Find x:

Thank you for your help.
Click here to see answer by rapaljer(4671)

Question 15355:
Click here to see answer by jasmyne8907(1)

Question 15323: y=-6x find a parallel line to it? and what is the slope
Click here to see answer by kikerkins(17)

Question 16528: Can anyone help me solve this?
If the line Kx - 2y = 6 has the same x and y-intercept, what is the value of K?
I'm not sure what to do with this.
I substituted zero for x and got
-2y = 6
y = -3
which would mean a set of points (0,-3) but how would that be the same
intercept for both x and y.
Any help would be very appreciated.
Click here to see answer by Earlsdon(6294)

Question 16545: The solve the system using the Linear combination mathod.
21x-8y=-1
9x+5y=8
Click here to see answer by kikerkins(17)

Question 16762: 8x-9=39
Click here to see answer by pwac(253)

Question 16680: please help me solve this equation y=3x-2
Click here to see answer by xcentaur(357)

Question 16971: Graph
How can I solve y=2x -3
Click here to see answer by Ms Ladii(3)

Question 17258: Hi! I am having problem with solving a system by the addition method.
This is one of my problems:
2x + 3y = 1
5x + 3y = 16
2x + 3y =1
-5x - 3y = -16
-3x - 2y = -15
-3x = 2y - 15, I'm not sure where to go from here as far as working the problem out. Your help is greatly appreciated. Thank you!!
Click here to see answer by josmiceli(19441)

Question 17282: Hello! I am trying to solve the system by substitution, this is what I have so far:
5x - 2y = -5
y - 5x = 3
-2y = -5x - 5
y = 5x + 3
-y = 2
5(2) - 2y = -5
10 - 2y = -5
2y = -10 - 5
2y = -5
If I ended this way it would give me a fraction, can a fraction be used with this? Your help is greatly appreciated! :)

Click here to see answer by rapaljer(4671)

Question 17341: Martina leaves home at 9 A.M., bicycling at a rate of 24mi/h. Two hours later, John leaves, driving at a rate of 48mi/h. At what time will JOhn catch up with Martina?
I have been trying to figure this out for several hours now. Is this a trick question, because I cannot figure it out. I know that distance= rate times time (d=r x t), but it doesn't give the distance.
Click here to see answer by venugopalramana(3286)

Question 17266: the line y=3/5x + 1/4 intersects the line y=-1/8x + r at the point (-1/2,-1/20) for what value of r?
Click here to see answer by venugopalramana(3286)

Question 17349: Hi can you help me solve this equation?
3(2x-1)=5(3x-15)
hope you can help
Click here to see answer by venugopalramana(3286)

Question 17348: Hi can you help me solve this please?
5(x+3)=7x+5
hope you can help
Click here to see answer by venugopalramana(3286)

Question 17352: Hi i'm having a problem with this question
3(x+2)-2(3x-5)=10
hope you can help me out
Click here to see answer by venugopalramana(3286)

Question 17353: PLEASE HELP ME SOLVE THIS EQUATION!!!
4(2x-3)-3(3x-10)=11
Thankyou =)
Click here to see answer by venugopalramana(3286)

Question 17480: How do you find the slope of a line?
Click here to see answer by pwac(253)

Question 17210: Write an expression of the sum of 2 consecutive even integres where 2x is the lesser integer
Thank you for your help
Click here to see answer by pwac(253)

Question 17642: The equation of a straight line is given by 2y = 3x - 8 . What is the gradient of the line?
Click here to see answer by venugopalramana(3286)

Question 17648:
The directions in my Algebra book is to "graph this equation". I'm not sure how to do these problems, but if I have an example to look at, I think I can figure the other problems out. PLEASE HELP! Thank-you.
Click here to see answer by rapaljer(4671)

Question 17723: HOW CAN I FIND THE EQUATION OF THE LINE PASSING THROUGH THE GIVEN POINTS?
AFTER YOU FIND THE EQUATION OF THE LINE PASSING THROUGH THE GIVEN POINTS HOW DO YOU FIND THE Y-INTERCEPT?
Click here to see answer by xcentaur(357)

Question 17884: I am trying to make sure my answer is correct.
-(-2+4x)-(3-4x)+5=-(-3+6x)+x+1
My answer is 0=x
Click here to see answer by whisper(27)

Question 17989: a straight line with the slope 5 contains the points (1,2) and (3,K). Find the value of K.
Click here to see answer by xcentaur(357)

Question 18406: Why is it true that any two points satisfying a linear equation will give you the same graph for the line represented by the equation?

Click here to see answer by MelanieBCC(40)

Question 18388: Here is my question:
If the lines 3x + Ky = 2 and 6x - 5y - 1 = 0 are parallel, what is the value of K?
I figured out that the slope of 6x - 5y - 1 = 0 is 6/5 and know that the slope is the same for the other equation since they are parallel, but I don't know how to apply it to the 1st equation.
Please Help!
Thanks!
Sandy
Click here to see answer by Earlsdon(6294)

Question 18491: For the equation 6x � 3y = 12, identify the x-intercept and the y-intercept of the graph.
Click here to see answer by Alwayscheerful(414)

Question 18604: All through the chapter in my algebra class, I have not understood the standard form of a line: Ax+By=C. I only understand slope intercept form: Y=mx+b. Could you please explain how to put the information that is given about a line ( the slope, x intercept, and y intercept)into standard form. Thank you!
Click here to see answer by mmm4444bot(95)

Question 18624: Alright, this one is starting to become an irritation at another board.
3a � 3b = x
a = 10, b = 2
Now, I solve this by satisfying the variable terms first, as such:
(3 * 10) � (3 * 2) = x
(30) � (6) = x
5 = x
The alternate solution that's being argued is that variable terms aren't solved first, and linear order of operations takes precedent:
3a � 3b = x
3 * 10 � 3 * 2 = x
30 � 3 * 2 = x
10 * 2 = x
20 = x
So, which is correct? I've scoured Google for this, but haven't found any confirmation either way.
Click here to see answer by venugopalramana(3286)

Question 18623: Alright, this one is starting to become an irritation at another board.
3a � 3b = x
a = 10, b = 2
Now, I solve this by satisfying the variable terms first, as such:
(3 * 10) � (3 * 2) = x
(30) � (6) = x
5 = x
The alternate solution that's being argued is that variable terms aren't solved first, and linear order of operations takes precedent:
3a � 3b = x
3 * 10 � 3 * 2 = x
30 � 3 * 2 = x
10 * 2 = x
20 = x
So, which is correct? I've scoured Google for this, but haven't found any confirmation either way.
Click here to see answer by venugopalramana(3286)

Question 18715: suppose a,b are real numbers.
solve:ax=b
Click here to see answer by venugopalramana(3286)

Question 18207: -16 = 5.5 + X +3.5
Click here to see answer by Alwayscheerful(414)

Question 18818: Please help - my son is having problems, & I can't help - here is the ?
Write the standard form of an equation of the line that passes through the given point and has the give slope
(1,1), 1/4
Click here to see answer by Earlsdon(6294)

Question 18843: I don't get this, 9y-1=6y +5
9y +1 -1 = +1 6y +5 or am I starting out wrong from the begining.

Click here to see answer by jessicawhidden(3)

Question 18845: Solve for the equation 5/2t= -3/5 I get 2=t is this true?
- 1/7z - 5 =0 I get z=35 is this right?
Click here to see answer by wuwei96815(245)

Question 18169: A friend asked for my help, now I need yours
5X(X-1)(2X-9)(8X-3)=0
Click here to see answer by venugopalramana(3286)

Question 18844: Solve for the equation 5/2t= -3/5 I get 2=t is this true?
Click here to see answer by xcentaur(357)

Question 18919: solve 3n+9+n=-3

Click here to see answer by wuwei96815(245)

Question 18934: How do i solve this equation?
3x+8+8x=9x-22
Click here to see answer by Volleyball_luver23(4)

Question 18934: How do i solve this equation?
3x+8+8x=9x-22
Click here to see answer by oreo(1)

Question 18934: How do i solve this equation?
3x+8+8x=9x-22
Click here to see answer by Alwayscheerful(414)

Question 18952: How do i solve this equation?
8x-4=19+5x
Click here to see answer by Alwayscheerful(414)

Question 18951: I have been unable to solve the following:
-10 = 1/2x + x
Is the answer 20/2?
Click here to see answer by Alwayscheerful(414)

Question 18950: How do i solve this equation?
-3-(-4x)=-4x+24
Click here to see answer by Alwayscheerful(414)

Question 18931: How do i solve this equation?
10y=2y-6y+7
Click here to see answer by Alwayscheerful(414)

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