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

Tutors Answer Your Questions about Linear-systems (FREE)

Question 301833: solve each system of equations by graphing.
y=-2x-1
y=2-x
Click here to see answer by richwmiller(9144)

Question 301835: solve using the elimations methods.
4x+y=5
2x-y=7
Click here to see answer by mananth(12270)

Question 301837: solve each system using the substitutions method.
x=y-5
2x+5y=4
Click here to see answer by mananth(12270)

Question 301844: solving using the eliminations method.
8x-5y=-9
3x+5y=-2
Click here to see answer by richwmiller(9144)

Question 301844: solving using the eliminations method.
8x-5y=-9
3x+5y=-2
Click here to see answer by stanbon(57967)

Question 301852: solve using the elimination method.
8x-3y=-6
5x+6y=75
Click here to see answer by dkala99(7)

Question 302068: -t-10=
Plz help Im Stuck on this problem
Click here to see answer by richwmiller(9144)

Question 302067: -d+6=3d+6
Plz Help me I have been stuck on this problem
Click here to see answer by richwmiller(9144)

Question 302088: solve each system using the substitution method
x-2y=7
3x-21=6y
Click here to see answer by london maths tutor(243)

Question 302008: solve each system using the substitution method.
s+t=-5
s-t=3
Click here to see answer by london maths tutor(243)

Question 302771: x+ y+ z=3
-2x+2y+3z=3
- x+3y+4z=6
Click here to see answer by Fombitz(13828)

Question 302780: x+y+z=2
-x+2y+3z=2
2x-3y-z=1
x-y-z=0
solve linear equation
Click here to see answer by JBarnum(2044)

Question 302770: x^1+x^2+x^3=0
2x^1-x^2-x^3=-3
x^1-x^2+x^3=0
Click here to see answer by Fombitz(13828)

Question 302798: 8-2x + 2= for x=4

Word problem: Jana planted t tomato plants. She planted six more bean plants than tomato plants. Is this correct?: tx6=12.
Thank you so much in advance.
I am from Poland, have been in the U.S. for 10 months, and am learning English along with math. I am 12.
Click here to see answer by checkley77(12569)

Question 302885: Okay I need to solve system of linear equations
Line 1: y= -1/2 x
Line 2: y=x
what is the unique solution?
(, )
Click here to see answer by solver91311(17077)

Question 302883: Okay I need to solve system of linear equations
Line 1: y= -1/2 x
Line 2: y=x

what is the unique solution to this equation?
Click here to see answer by solver91311(17077)

Question 302944: How do I solve?
4x + 4y = 16
-2x + 5y = 9
Click here to see answer by Alan3354(31529)

Question 303029: Amy paid $83.49 for a pair of running shoes during a 30%-off sale. What was the regular price?
Click here to see answer by checkley77(12569)

Question 303047: what is the answers to -12x+6y=24
Click here to see answer by TX911(36)

Question 303263: Please help me to solve this equation:
x+y+z=2
-x+2y+3z=2
2x-3y-z=1
x-y-z=0
Click here to see answer by ankor@dixie-net.com(15746)

Question 303286: 3x-2y=13
5x+7y=22
Click here to see answer by jim_thompson5910(28715)

Question 303264: Please help me solve this equation
-2x+3y-5z+w=0
4x-6y+10z-2w=0
Click here to see answer by checkley77(12569)

Question 303251: Please help me solve this equation: show me how to calculate
x^1+x^2+x^3=0
2x^1-x^2-x^3=-3
x^1-x^2+x^3=0
Answer= x^-1
x^0
x^1
Click here to see answer by Alan3354(31529)

Question 303541: What are all the names of the different types of methods that you can use to solve a Linear Equation? (probably spelled it wrong)
Click here to see answer by ruvimsavin(2)

Question 303541: What are all the names of the different types of methods that you can use to solve a Linear Equation? (probably spelled it wrong)
Click here to see answer by richwmiller(9144)

Question 303546: solve the systm of linear equation by substitution
3x+2y=6
y=2x+10
Click here to see answer by stanbon(57967)

Question 303513: In a family there are two cars. The sum of the average miles per gallon obtained by the two cars in a particular week is 65. The first car has consumed 25 gallons during that week, and the second has consumed 35 gallons, for a total of 2025 miles driven by the two cars combined. What was the average gas mileage obtained by each of the two cars in that week?
Click here to see answer by mananth(12270)

Question 303877: Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 60mph and train B is traveling at 80mph. Train A passes a station at 3:25pm, train B passes the same station at 3:40pm. At what time will Train B catch up to Train A
Click here to see answer by checkley77(12569)

Question 303915: Amy paid $74.87 for something it was on sale at 15% off. What is the regular price of the item?
Click here to see answer by JBarnum(2044)

Question 304038: When you have an equation such as x + 1/2 = -3/2 how do you know which number to subtract or add from the left side and vice versa on the right side? Is there an easy way to determine it?
Click here to see answer by edjones(7569)

Question 304350: Can you mutiply unlike terms?
Click here to see answer by Alan3354(31529)

Question 304467: 8y(8y - 8) + 58y

Click here to see answer by mananth(12270)

Question 304564: Alex buys 36 cans of vegetables. He pays 80 cents for tomatoes and 40 cents for a can of corn, for a total cost of $20.80. How many cans of tomatoes did he buy?
Click here to see answer by scott8148(6628)

Question 304724: Rewrite the linear equations as a function of x.
-2x+3y=11
Click here to see answer by Theo(3504)

Question 304722: Rewrite the linear equation as a function of x
4x+5y=20
Click here to see answer by Alan3354(31529)

Question 304660: Solve the following by substitution: x + y = 0, 3x + 3y = 4. Are these equations independent, dependent or inconsistent?
What are the slopes of the above lines ?
Change the second equation in problem 1 to 3x + 2y = 4. Solve by substitution.

Click here to see answer by Alan3354(31529)

Question 304828: A baseball team played 150 games and won 32 more than it lost. How many did it lose?
Click here to see answer by themathtutor2009(81)

Question 305127: how can i solve this substitution methods:
3x-2y=-7
y=2x+6
Click here to see answer by Alan3354(31529)

Question 305137: please help me solve this equiation:
sume methods
5x+4y=6
2x=-5y-1
thanks
Click here to see answer by checkley77(12569)

Question 305134: solve the following: substitution method 3x-2y=-7 y=2x+6
Click here to see answer by checkley77(12569)

Question 305193: can you help me solve 2 & 3 variable linear equations using the elimination or the subsitution method?

Click here to see answer by richwmiller(9144)

Question 305168: m-5/
Click here to see answer by richwmiller(9144)

Question 306031: x+y=7
x-y=9

Click here to see answer by themathtutor2009(81)

Question 306059: 3x+5y=-11
x-2y=11

Click here to see answer by themathtutor2009(81)

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