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

Tutors Answer Your Questions about Linear-systems (FREE)

Question 402799: May you please help me with this problem:
5e+4f=9
4e+5f=9
The instructions are to use linear combinations to solve the linear system. Then check your solution. Thank you for your time.

Click here to see answer by Alan3354(30959)

Question 402827: May you help me with this problem:
2q=7-5p
4p-16=q
The instructions are to use linear combinations to solve the linear system.
Then check your solution. Thank you for time.
Click here to see answer by Alan3354(30959)

Question 402828: May you help me with this problem:
g-10h=43
18=-g+5h
The instructions are to use linear combinations to solve the linear system.
Then check your solution. Thank you for time.
Click here to see answer by Alan3354(30959)

Question 402897: What similarities and differences do you see between functions and linear equations. Are all linear equations functions? Is there an instance in which a linear equation is not a function?. Create an equation of a nonlinear function and provide two inputs
Click here to see answer by jim_thompson5910(28476)

Question 402927: I really need a refresher here! Please help :)
a)solve the equation symbolically
b)classify the equation as a contradiction, an identity, or a conditional equation.
7 - 9z = 2(3 - 4z) - z
Click here to see answer by scott8148(6628)

Question 402977: -7x-5y=-3
x-8y=-17
Click here to see answer by jim_thompson5910(28476)

Question 403138: Bob has to mix a solution of .67 herbicide and .46 herbicide to form 42 liters of a .55 solution. How much .67 solution does Bob use?
Click here to see answer by stanbon(57219)

Question 403148: Solve the linear equation with intersection of graphs method. Approximate the solution to the nearest thousandth whenever appropriate.
(6-7)/(7)=(2x-3)/(3)
Click here to see answer by rfer(12644)

Question 403241: a farmer keeps hens and rabbits on his form.one day he counted a total of 70 heads and 196 legs. how many more hens than rabbits does he have?
Click here to see answer by Edwin McCravy(8880)

Question 403278: what is an equation that would be solved by using multiplication. and how would you show it?
Click here to see answer by stanbon(57219)

Question 403279: Sasha solved an equation. Her work is shown below. Explain Sasha's error. Then, show the correct way to solve.

Sasha's work
h/7 = 6
h/7 + 7 = 6 + 7
h = 13
Click here to see answer by josmiceli(9649)

Question 403294: Write an equation that you could solve using these steps:
Add 7 to both sides. Then, divide both sides by 4.
Explain how you know your answer is right.

Click here to see answer by checkley79(3039)

Question 403406: find -y when y=3
Click here to see answer by sofiyac(695)

Question 403456: what are the steps to solving 5x-8=5+12

Click here to see answer by Mr.Math(29)

Question 403465: Determine the x and y intercepts on the graph of the equation. Draw a conclusion about what the constants a and b represent.
x/2 + y/3 = 1
Click here to see answer by Alan3354(30959)

Question 403476: How do you write linear equations in slope intercept form? We have to write an equation of the line with the given slope and y-intercept
problem- m=2;b=-2

Click here to see answer by Alan3354(30959)

Question 403540: Please help me solve this problem.
I need to solve by using the elimination method.
6x+7y=6
x=48-9y
Click here to see answer by MathLover1(6614)

Question 403563: 2(a-4)-3(a-2)=4(a+1)+4
Click here to see answer by rfadrogane(214)

Question 403753: graph the equation 0.3x-2.6y=8.1
Click here to see answer by stanbon(57219)

Question 403866: f(x) = 4x -3x + 5
f(1) f(3) f(5)
f(1)=4*1-3*1+5
f(1)=4-3+5
F(1)=6
F(3)=4*3-3*3+5
F(3)=12-9+5
F(3)=8
F(5)=4*5-3*5+5
F(5)=20-15+5
F(5)=10
What would be the slope of the line?????
Click here to see answer by richard1234(5390)

Question 403846: I have a problem that I can't seem to be able to set up. It is Pablo is 3 miles behind Marc. Pablo increases his speed to 5 miles per hour, while Marc, runs at 4mph. At this rate, how many miles will Pablo have to run to catch up to Marc? How long will it take?
Click here to see answer by ankor@dixie-net.com(15624)

Question 403985: What is the answer for (2x+7y cm)(2x- 7y cm)
Click here to see answer by stanbon(57219)

Question 404340: I am having serious problem trying to solve by elimination method
7x-8y=-41
8x+7y=50
Soution set is
Thank you for your help.
Click here to see answer by ankor@dixie-net.com(15624)

Question 404508: I need to solve the following system of equations
x+6y=9 (1)
x=7-6y (2)
What is the solution to the system?

Thank you
Click here to see answer by mananth(12270)

Question 404506: How would I graph the following system of inequalities?
y≥-1
x≥5
Thank you
Click here to see answer by mananth(12270)

Question 404599: hi please help me solve this problem ( solve the linear system using substitution) 3y+x=2, y-x=-6
Click here to see answer by stanbon(57219)

Question 404599: hi please help me solve this problem ( solve the linear system using substitution) 3y+x=2, y-x=-6
Click here to see answer by ewatrrr(10682)

Question 404598: hi, please help me solve this problem ( solve the linear system using subsitution) y-2x=-6. 5x-y=9
thank you
Click here to see answer by MathLover1(6614)

Question 404598: hi, please help me solve this problem ( solve the linear system using subsitution) y-2x=-6. 5x-y=9
thank you
Click here to see answer by ewatrrr(10682)

Question 404596: hi im having trouble solving the linear system using substitution can you please help me heres the problem im stuck on y-5=x , 4x-y=4
Click here to see answer by ewatrrr(10682)

Question 404699: How do you solve the following:
-3x+4y=12
2x+y=-8
2x+4y=-4
3x+5y=-3
5x+2y=-1
3x+7y=11
Please solve by linear combination with the steps

Click here to see answer by Alan3354(30959)

Question 404789: I need to solve for the indicated letter, and I don't even understand what it is I am suppose to do.
f=3g for g
Click here to see answer by rfer(12644)

Question 404857: Solve for unknown:
3x-4y=10
4x-3y=5
(I used the method of interchangeable coefficients but not getting the answer)
Click here to see answer by josmiceli(9649)

Question 404823: I need help with the following: 4x-9y = 61
10x+3y = 25
I am writing for my daughter. She has an IEP for math and is struggling with her work. She will write to you from this point forward, however, when you explain it would be helpful if you wrote your explanations as simply as possible. My daughter is also from another country. I am a music teacher and am no help whatsoever to her. Thanks, Mom (DB)
Click here to see answer by keksjr(7)

Question 405113: Is (0, -2) a solution of 2x - 5y = 10?
Click here to see answer by josmiceli(9649)

Question 405162: -4x+y=6
-5x-y+21
Click here to see answer by jim_thompson5910(28476)

Question 405456: Please help me solve this equation -21 - (6) + (-3)+ 11=
Click here to see answer by MathLover1(6614)

Question 405456: Please help me solve this equation -21 - (6) + (-3)+ 11=
Click here to see answer by Tatiana_Stebko(1326)

Question 405533: Solve and graph 2x=5y-11 and 3x=2y
Possible solutions to equation 1 (0,2.5) and (-5.5,0)
Possible solutions to equation 2 (0,0) and (2,3)
Note if Independent, dependent, or inconsistent
Click here to see answer by ewatrrr(10682)

Question 405663: How do you solve 2x+3y=1 and -3x+y=15 by substitution?
I have tried solving for the x and the y in the first probem but i getr frarctions and i dont think they are right..
Click here to see answer by MathLover1(6614)

Question 405621: The haloween association reported that last year Americans spent $0.68 billion more on candy than costumes for Halloween. If the total spent by Americans for both items was 3.18 billion, how much did Americans spend on each item?
Click here to see answer by checkley79(3039)

Question 406103: Example A: 2n + 3 = 13
Example B: n + 3 = 13
Which example is a one-step equation?
How is solving a two-step equation like solving one-step equation? How is solving them different?
Click here to see answer by ewatrrr(10682)

Question 406188: 10x-7=4x-25
Click here to see answer by ewatrrr(10682)

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