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

Tutors Answer Your Questions about Linear-equations (FREE)

Question 467990: 2x-1<4x+3
Click here to see answer by edjones(7569)

Question 468094: how to solve -20s+42+5(4s-8)=0
Click here to see answer by edjones(7569)

Question 468096: Which of the following is an equation of a line that passes through the origin and is parallel to the line 2x – y = 5 ?

Click here to see answer by Alan3354(30993)

Question 468133: Find the slope, if it exists:
y=-8x+4
Click here to see answer by stanbon(57323)

Question 468133: Find the slope, if it exists:
y=-8x+4
Click here to see answer by Theo(3459)

Question 468143: Hopelessly stuck on a problem, any help would be appreciated!
Problem - Produce a graph of the line given the equation: 1/4x - 3/5y = 12
Here's what I've worked out so far:
- 3/5y = 12 - 1/4x
y = 12 - 1/4x * - 5/3
y = 12 + 5x/12
I don't know if i've made a mistake to this point but from here I've tried using a table to find the points to graph but I'm not coming up with anything that makes sense.
Click here to see answer by scott8148(6628)

Question 468168: -[3x+(8x+1)]=6-(2x+4)
Click here to see answer by ccs2011(207)

Question 468217: How do I use addition to solve: {2x+3y=-5
{3x-2y=12
Click here to see answer by algebrahouse.com(1079)

Question 468280: If f(x)=-3x+2,what are the values of m and b , so that , f(mx+b)=2x-3
Click here to see answer by stanbon(57323)

Question 468280: If f(x)=-3x+2,what are the values of m and b , so that , f(mx+b)=2x-3
Click here to see answer by ewatrrr(10682)

Question 468309: What is the (x,y) for 10x-7y+-6 , 5x+7y=81
Click here to see answer by Alan3354(30993)

Question 468316: Indicate which of the following sets of lines are parallel, perpendicular, or neither. 3x + y = 5. X + y = 3.
Click here to see answer by algebrahouse.com(1079)

Question 468403: I am having problems with solving by elimination...problem example:
-3a+2b=0
3a-4b=-1
Then I do not understand how this gives me an ordered pair.
Click here to see answer by jorel1380(2518)

Question 468420: write an equation of the line containing the given points and perpendicular to the line (5,-5) 6x+7=9
Click here to see answer by Numbah24(2)

Question 468447: How do you get the slope by using the y-intercept?
Click here to see answer by solver91311(16877)

Question 468479: Please help me with this algebra question. Thank you so much in advance!
I had sent this one in but forgot to put the question.
An equation and two ordered pairs have been given. Show each pair is a solution of the equation. Then if you can, graph the two pairs to determine another solution.
y = x - 2; (3,1),(-2,-4)
Click here to see answer by algebrahouse.com(1079)

Question 468482: Please help me with this algebra question. Thank you so much in advance.
List (a) the coordinates of any y intercept
(b) the coordinates of any x intercept Do not graph.
10x - 3y = 60
Click here to see answer by stanbon(57323)

Question 468497: Please help me with this question. Thanks in advance.
An equation and two ordered pairs are given. Show each pair is a solution of the equation, then graph the two pairs to determine another solution.
y = x - 2; (3,1),(- 2,- 4)
Click here to see answer by rfer(12657)

Question 468532: Please help me with this algebra problem. Thank you so much in advance.
Please show all work. solve the equation for d
k = 2c - 9d/8
Click here to see answer by asuar010(324)

Question 468532: Please help me with this algebra problem. Thank you so much in advance.
Please show all work. solve the equation for d
k = 2c - 9d/8
Click here to see answer by Tatiana_Stebko(1326)

Question 468531: Please help me with this algebra problem. Thanks so much in advance.
Simplify and show all work please.
-4p - 10 (2p - 3) = 22 - 7 (1 - 2p)
Click here to see answer by Tatiana_Stebko(1326)

Question 468529: Please help me with this algebra problem. Thanks in advance.
Simplify and show all work please.
9c^3 + 7c - (3c^3 - 12 + c)
Click here to see answer by asuar010(324)

Question 468529: Please help me with this algebra problem. Thanks in advance.
Simplify and show all work please.
9c^3 + 7c - (3c^3 - 12 + c)
Click here to see answer by Tatiana_Stebko(1326)

Question 468586: Determine whether the given ordered pair is a solution of the system.
(4, 5)
x + y = 9
x - y = -1
Click here to see answer by rfer(12657)

Question 468524: Please help me with this algebra problem. Thanks so much in advance.
Simplify and show all work please
12 divided by 1/4 + 2/5 - 2^3
Click here to see answer by rfer(12657)

Question 468652: The line: y = 0.14x + 0.77 represents an estimate of the average cost of gasoline for each year. The line 0.11x - y = -0.85 estimates the price of gasoline in January of each year.
Use the equations of the lines to determine if they are parallel. What did you find?
Explain why you would expect the two lines to be intersecting, parallel, or perpendicular (chooseone)?
Click here to see answer by rfer(12657)

Question 468665: Please help me with this algebra problem. Thanks in advance.
Solve. The houses on the north side of polk avenue are consecutive odd numbers. Bob and Laura are next door neighbors and the sum of there houses is 524. Find both house numbers.
Click here to see answer by Alan3354(30993)

Question 468670: Please help me with this algebra problem.
Given the linear equation y=-3/2x+1
Find the y coordinates of the points (-4), (-2) and (6) Please show work.
Click here to see answer by rfer(12657)

Question 468668: How do I solve the system in matrices?:
{x+y=2
{x-y=-4
{2x+y=1
and
{x+y=4
{2x-y=2
Click here to see answer by Alan3354(30993)

Question 468663: Please help me with this algebra problem.
If Barbara recieved a 4 percent raise and is now making $41,200 per year. What was her salary before the raise? Round your answer to the nearest dollar.
Click here to see answer by rfer(12657)

Question 468730: Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this.
-15r + 12s = 24
30r – 24s = 48
Click here to see answer by jorel1380(2518)

Question 468704: A problem in my textbook says:
Solve .25x + .10(x-3) = .05(x+18)
The book says to multiply both sides by 100. The result is 25x + 10(x-3) = 5(x+18). How did they get from the original equation to the result? I'm just unsure why (x-3) and (x+18) are unchanged. I'm also not sure how order of operations fits these steps.
Click here to see answer by rfer(12657)

Question 468752: graph the equation using the slope and the y-intercept y=10/7x+3
Click here to see answer by algebrahouse.com(1079)

Question 468688: Please help me with this algebra problem. Thank you so much.
The salmon population in a particular stream in Alaska decreased from 148,000 in 1997 to 129,000 in 2002 predict the salmon population in 2015. Please show work.
Click here to see answer by ankor@dixie-net.com(15649)

Question 468771: Hello Tutors of Algebra.com ,
I just want to ask how to solve this problem ?
3x - 2y = 6x - 3y + 4
how can I change it to standard form ?
how can I change it to slope intercept?
and can you provide solutions so I can understand clearly?
thanks in advance I hope you can answer me
Click here to see answer by Theo(3459)

Question 469056: What is the slope of the line represented by the equation x = -9?
Click here to see answer by algebrahouse.com(1079)

Question 469048: WHAT IS A PARALLEL EQUATION TO Y=1/2X+5
Click here to see answer by Alan3354(30993)

Question 469119: what is the formula to find the length of a slope if the vertical elevation and horizontal dimension are known
Click here to see answer by mananth(12270)

Question 469071: write the equation for the parallel and perpendicular line
x= -2 R(11,-8)
Click here to see answer by Tatiana_Stebko(1326)

Question 469123: s=v0t+(1/2)at^2 Solve for a
Click here to see answer by Tatiana_Stebko(1326)

Question 469127: T+mg=(mv^2/R) solve for m
Click here to see answer by Tatiana_Stebko(1326)

Question 469125: find the equation for the line passing through the point (1,-4) and parallel to the line whose equation is y=4x+10
Click here to see answer by Tatiana_Stebko(1326)

Question 469124: M=R1L-F(L-x) Solve for L
T+mg=(mv^2/R) Solve for m
Click here to see answer by Tatiana_Stebko(1326)

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