Questions on Algebra: Linear Algebra (NOT Linear Equations) answered by real tutors!

Tutors Answer Your Questions about Linear Algebra (FREE)

Question 326742: solve by the substatution method
8x+2y=-16
-4x+y=24
I am looking for the order pair
Click here to see answer by Fombitz(13828)

Question 326776: 5x+3y= -22
-7x+y=36
solve by substatution method
Click here to see answer by Fombitz(13828)

Question 326758: solve by the substatution method
5x+3y= -22
-7x+y=36
I am looking for the order pair
Click here to see answer by Fombitz(13828)

Question 326831: 6-3x=5x-10x+10 I came up with 1 as the answer
Click here to see answer by jessica43(140)

Question 326829: -(8y+3)-(-7y-4)=-3 Would this be correct -8y+3=7y-4=-3 My e-mail is collinscora@yahoo.com
Click here to see answer by jessica43(140)

Question 327885: Solve the following system of nonlinear equations.
y^2+4x=0
x^2-8x+y^2+15=0
Click here to see answer by Alan3354(30993)

Question 327883: Solve the following system of nonlinear equations
25x^2+9y^2=225
x-y=0
Click here to see answer by Edwin McCravy(8893)

Question 327877: Solve the following system of nonlinear equations
y=-x^2-2x+14
y=x^3-6x^2+12x-2
Click here to see answer by Fombitz(13828)

Question 327882: How many solutions can be found in the intervl [-3,3] for the following system of nonlinear equations?
y=x^4+x
y=4^x+4
Click here to see answer by Fombitz(13828)

Question 328149: Solve the following system of nonlinear equations?
y=x^4-2x^3-17x^2+4
y=-3x^4-2x^3+20x^2-5

Click here to see answer by Fombitz(13828)

Question 328160: Solve the following system of nonlinear equations
y=x^4-x^2+2x-1
y=x^4+3x^2+2x-2
Click here to see answer by ankor@dixie-net.com(15645)

Question 328186: Determine the rul for the linear function f given the specified values
f(2)=-1; f(5)=11
A relation is defined by y=3kx/4. if y=30 when x=8 find y when x=6
WHAT IS A FUNCTION!?
Click here to see answer by user_dude2008(1861)

Question 328245: I need to solve this by factoring and I'm terrible at factoring.

My options are: A)8,-9
B)-8,9
C)-8,-9
D)8,9
E)prime equation, cannot be factored
Click here to see answer by user_dude2008(1861)

Question 328152: Solve the following system of nonlinear equations
2xy=3
4x^2-8y^2=1
Click here to see answer by Fombitz(13828)

Question 328159: Solve the following system of nolinear equations
x^2+y^2=3
x^2+y=0
Click here to see answer by edjones(7569)

Question 328492: 6X+3Y=4.5
cONVERT FUNCTION INTO EQUATION AND FIND F(5)
Click here to see answer by Fombitz(13828)

Question 328513: Solve the following system of nonlinear equations
y=x^4-5x^2+x+10
y=-x^4+5x^2+x-4
Click here to see answer by Fombitz(13828)

Question 328515: solve the following system of nonlinear equations
y=x^4-x^2+2x-1
y=x^4+3x^2+2x-2
Click here to see answer by Fombitz(13828)

Question 328454: simplify. 12/2m-12
Click here to see answer by Fombitz(13828)

Question 328514: Solve the following system of nonlinear equations.
y=4x^3-24x^2+4x-4
y=x^3-5x^2-4x+8
Click here to see answer by Fombitz(13828)

Question 328779: 4x+3y=-17
x=-3-2y
(1,-5)
Did I get the right answer? I was to solve using the substitution method
(1,-5)
Click here to see answer by Fombitz(13828)

Question 327876: Solve the following system of nonlinear equations
y=x^4-x^2+2x-1
y=x^4+3x^2+2x-2
Click here to see answer by Fombitz(13828)

Question 329535: what does the y equal in the solution of the system of equations below?
3x-y=1
y-x=-5

Click here to see answer by checkley77(12569)

Question 330054: what equation represents y?
2x – 3y = 23
–1x – y = 1
Click here to see answer by stanbon(57282)

Question 330055: *You want to get rid of the x by elimination in the system below.
3x + 4y = 7
4x – 2y = 24
If you multiply the top equation by 4, by which number will you multiply the bottom equation?
*Which expression can be substituted for x in the top equation of the system below to solve the system by substitution?
2x + 10y = 1
x – 4y = –4

Click here to see answer by mananth(12270)

Question 330212: 3(4-y)=5(y+2)

Click here to see answer by Fombitz(13828)

Question 330276: how do i solve:
3x(2x-1)=0
Click here to see answer by Fombitz(13828)

Question 330502: y= 3x+7 and 8x- 2y= 16 are the pair of lines parallel
Click here to see answer by Fombitz(13828)

Question 330415: Grapgh y<2
Click here to see answer by Fombitz(13828)

Question 330742: I'm sure that this is a simple problem. I just dont remember how to do these type of problems ,it's been a while since I've worked with algebra. My instructions were to graph each pair of equations in the same coordinate plane. x+y=6
x-y=4 I started to use y=mx+b and the x y table, I'm just not sure if im doing it right,and I would really appreciate your help!
Click here to see answer by Alan3354(30993)

Question 329671: k3' = k3k5/ k4+k5
k1' = k1A(k3'/k3'+k2)
Unsure how to substitute k3' into second equation and simplify. Please help, step by step explaination is better.
Thanks
Click here to see answer by Fombitz(13828)

Question 331145: im a little stuck heres my question:
during one calendar year a state trooper issued a total of 375 citations for warnings and speeding tickets. of these, there were 37 more warnings than speeding tickets. how many warnings and how many speeding tickets were issued?
Click here to see answer by mananth(12270)

Question 331065: Three times the greatest of three consecutive even integers exceeds twice the least by 38. Find the integers.
Click here to see answer by neatmath(300)

Question 331166: Plese answer this one,plesee

7x+5y=9
4x+5y=6
solving thru addition method
Click here to see answer by ankor@dixie-net.com(15645)

Question 331332: Simplify (-4b+9h)+(-14h)
Click here to see answer by vleith(2825)

Question 331568: What is the value of m in the folllowing equation: 1/8(3m-5)= 6/5(6m-2)+5
Click here to see answer by rfer(12654)

Question 331652: please help me solve this equation how am i to get the linear equation 5x-2y=-8in slope intercept form?
Click here to see answer by solver91311(16872)

Question 331976: how do i do this problem? A=1/2h(9a+b)
Click here to see answer by Alan3354(30993)

Question 332792: These are the only 2 I'm having problems with. I know how to solve them when f(x)= a number. But how do i solve it when there is a number = a number?
If f(x) = 3x3 + 9x2 - x + C and f(3) = 1, what is the value of C?

If f(x) = (x-5A)/(-10x+2) and f(-10) = -15, what is the value of A?
Click here to see answer by solver91311(16872)

Question 332802: f(x)= x-5A / -10X + 2
f(-10)= -15
This is a problem that i can't seem to solve. especially when i plug -15 in for (x) but don't know how to get (a) by it self.
Thank you
Click here to see answer by solver91311(16872)

Question 332687: A chemist working on a flu vaccine needs to mix a 10% sodium iodine solution with a 60%sodium iodine to obtain 50 milliliters of a 30% sodium iodine solution. How many milliliters of the 10% solution and of the 60% solution should be mixed?
Click here to see answer by ankor@dixie-net.com(15645)

Question 332860: As a salesperson at Trading Cards Unlimited Justin received a monthly commission on all that he sells. If he sells $500 worth of merchandise in one month, he is paid $410. If he sells $900 of merchandise in one month, he is paid $498. Find Justins salary when he sells $3,400worth of merchandise?
I need the answer as soon as possible please and thank you..
Click here to see answer by benazir.sj@gmail.com(109)

Question 332849: solve the system of eqations
1/3x + 1/3y = 1
x-7 = -7
Click here to see answer by checkley77(12569)

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