Questions on Algebra: Systems of Linear Equations answered by real tutors!

Tutors Answer Your Questions about Linear-systems (FREE)

Question 807188: Solve each system by addition, if possible.
x + 2y = -9
x - 2y = -1
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Click here to see answer by Alan3354(69443)

Question 807188: Solve each system by addition, if possible.
x + 2y = -9
x - 2y = -1
------------------
Click here to see answer by kekestarme(2)

Question 807330: what is the slope of y+4=7(x-7)?
Click here to see answer by lwsshak3(11628)

Question 807379: I am having a problem with this question, it gives me a choice of 3 answers:
Solve the system of linear equations by graphing
y=4x
6x-y=4
1. Type an ordered pair
2. Indefinite Solutions
3. No Solution

Click here to see answer by richwmiller(17219)

Question 807433: 26y^17/13y^3
Click here to see answer by mananth(16946)

Question 807526: [Find the point that was used in this point-slope form equation:] y+4=7(x-7)
Click here to see answer by TimothyLamb(4379)

Question 807527:
Click here to see answer by Alan3354(69443)

Question 807582: I would love to have help on this, this homework/class expires Sunday. I was sick when I had to do this in public school, so I missed the lesson, but ended up staying after school one day for it, I am still stuggling with this type of math, and would like to have help as soon as I can. Here is the question
two inequalities follow
-26<4k -2 and 2k-1<5
write a compound inequality to comine the inequalities shown previiously.
Now to combine them wouldn't I take like 4k and 2k and have it like 6k and then like -26 and -1 and have -27 and for the 5 and -2 it would be like 3?
So my new inequalite would be something like
-27<6k-3
Click here to see answer by stanbon(75887)

Question 807678: Please solve this of substitution
5x-9y=29
12x+y=47
Click here to see answer by KMST(5328)

Question 807086: Got this far in the problem
x + 2y = -9
x - 2y = -1
-------------
2x = -10
x = -10/2 = -5
What do I do next?
Click here to see answer by tommyt3rd(5050)

Question 807868: Decide If the point lie on the line. -2x+3y=10. If it is write solution. If it is not write not a solution
A) (2,2) B) (-5,0)
Click here to see answer by richwmiller(17219)

Question 807724: Could you please help me solve this equation.
ax-by=1
bx+ay=1
please show steps!

Thank you for your help, it is greatly appreciated.
Click here to see answer by ankor@dixie-net.com(22740)

Question 807967: Solve each system by addition, if possible
5x - 2y = 19
3x + 4y = 1
Click here to see answer by stanbon(75887)

Question 808035: 7m+12n=-1
5m-3n=7
Click here to see answer by mananth(16946)

Question 808102: please help me solve the 2x-6y-19=0 in slope intercept form please
Click here to see answer by Alan3354(69443)

Question 808144: A) Solve the system of equations by substitution. B) Is this system consistent independent, consistent dependent or inconsistent? C)Describe the graph without drawing it
x-y=1
3x=3y+3
Click here to see answer by stanbon(75887)

Question 808142: A.) Solve the system of equations by graphing. B.) Is this system consistent independent, consistent dependent or inconsistent?
3x-9y=0
-x+3y=-3
Click here to see answer by stanbon(75887)

Question 808152: What would y= -1/2x + 3 be written in standard form?
Click here to see answer by TimothyLamb(4379)

Question 808152: What would y= -1/2x + 3 be written in standard form?
Click here to see answer by jim_thompson5910(35256)

Question 807334: what is an equation that is perpendicular to y+4=7(x-7)?
Click here to see answer by tommyt3rd(5050)

Question 807979: Solve each system by addition, if possible.
4x + 6y = 5
8x - 9y = 3
Click here to see answer by TimothyLamb(4379)

Question 808165: Solve each system by any method.
x/2 - y/3 = -4
x/2 + y/9 = 0
Click here to see answer by stanbon(75887)

Question 808165: Solve each system by any method.
x/2 - y/3 = -4
x/2 + y/9 = 0
Click here to see answer by JBarnum(2146)

Question 808186: Solve each system by any method.
2/3x - 1/4y = -8
1/2x - 3/8y = -9
Click here to see answer by richwmiller(17219)

Question 808259: How do you solve and graph an linear equation with a formula that was already given?
Click here to see answer by Alan3354(69443)

Question 808472: Ok so here is my problem so far: (substitution)
y=2x+7
3x-y=-9
When you put the y in to substitute should it be like this:
3x-(2x+7)=-9
Would you distribute? Or just totally forget the negative and write it like this:
3x+2x+7=-9
Click here to see answer by stanbon(75887)

Question 808501: I need help simplifying each expression.
(4-9)^0, 4^0-9^0, 4^0-9
Click here to see answer by JBarnum(2146)

Question 807792: - 5 _____- 9 Is the answer >
Click here to see answer by tommyt3rd(5050)

Question 808629: how do you solve a system of linear equations (using the addition/elimination method) if there is no lcd?
Click here to see answer by solver91311(24713)

Question 808797: i really need help on writing "x=y-5" in standard form.
Click here to see answer by TimothyLamb(4379)

Question 808826: 5x+2y=-6
-7y-4y=0

Click here to see answer by TimothyLamb(4379)

Question 808940: what is the y intercept of the line that passes through point (-2,1) and is perpendicular to line y=-3x+1
Click here to see answer by TimothyLamb(4379)

Question 809094: How do you solve;
1/4+2/b-1/12=0?
Click here to see answer by solver91311(24713)

Question 809270: Can you solve these two equations by the elimination method ?
x + y = 8
x + 3y = 12
Click here to see answer by richwmiller(17219)

Question 809288: On my algebra homework, it says to rewrite the linear system so that the like terms are arranged in columns, what does that mean?
Click here to see answer by solver91311(24713)

Question 809359: -3x + 2y = 3 substitution Method

Click here to see answer by Alan3354(69443)

Question 809366: y=x
y=2x-1

Click here to see answer by edjones(8007)

Question 809471: find the slope of a line containing a pair of points (3,1) and (-8,-5)
Click here to see answer by mananth(16946)

Question 809640: 2x+5y=6000
3x+2y=6000
solve

Click here to see answer by TimothyLamb(4379)

Question 809749: X-3y=13
5x+3y=2
Click here to see answer by Alan3354(69443)

Question 809875: how do you solve for x if 9x to the 3rd power = 45?
Click here to see answer by ankor@dixie-net.com(22740)

Question 810071: Y-5=x
4x-y=4
Click here to see answer by TimothyLamb(4379)

Question 810106: Convert. If necessary, round to the nearest tenth.
100 mi.
Click here to see answer by richwmiller(17219)

Question 810116: To estimate the number of people in Springfield, population 10,000, who have a swimming pool in their backyard, 250 people were interviewed. Of those polled, 119 had a swimming pool. How many people in the city might one expect to have a swimming pool? (Round to the nearest whole number, if necessary.)

Click here to see answer by richwmiller(17219)

Question 810406: Im taking my ged test saturday and im having alot of trouble remembering all of the steps and formulas for each problem and im also having trouble with word problems I need help so bad id appreciate it so much I need this ged so bad.if I dont pass ill have to take trigonometry and thats gross so can someone help me remeber certain formulas for different word problems and equations
Click here to see answer by josgarithmetic(39617)

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