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substitution method

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The substitution method 2020-06-10
Hardebolar pose la question :
simultaneous equation by substitution method

.a-b=2/3
a+b=1 2/3

p lui répond.
Linear systems 2009-02-20
Rose pose la question :
I have been having trouble trying to figure out these three math problems , I need help breaking them down so I could understand them better please help.
1. x = 7 - x
2 x - y + 8

2. 8 x + 5 y = 1 8 4
x - y = 3

3. y + 2 x = 3
y + 2 x = 4

I can't figure out how to break them down in the right order.

Penny Nom lui répond.
The substitution method 2009-02-18
Nicolette pose la question :
I am working on linear programming problems that I need to solve pairs of linear equations for. I am confused and am not sure how to solve these problems!
5x+3y=7      y=x-3 How can i solve this using the substitution method?

Penny Nom lui répond.
The substitution method 2009-02-06
amber pose la question :
Pleasse help me with this problem
x+y=-2
y-2x=1

Penny Nom lui répond.
The substitution method 2008-07-26
Enid pose la question :
Solve by substitution method
3x + 7y = 25
-7x + y = 63

Penny Nom lui répond.
Integrate 2x(x^2-1)^5 dx 2008-04-17
joey pose la question :
pls help me to integrate
2x(x^2-1)^5 dx using the substitution u=x^2-1

Harley Weston lui répond.
Substitution method 2007-10-11
Kevin pose la question :
3xx+2y=-36-y=11
Stephen La Rocque lui répond.
Two equations in two unknowns 2007-09-22
Mary pose la question :
Having problems doing this problem, looking for a solution with the work. I would like to see how you got your answer, to see what I was doing wrong.

solve using the substitution method, is there "no solution" or "infinitely many solutions"

4x+y=4
2x+8y=0

Stephen La Rocque and Leeanne Boehm lui répond.
The substitution method 2007-06-23
mary pose la question :
solve the system by the method of substitution: -5x+2y=-15 4x-y=9
Stephen La Rocque lui répond.
The substitution method 2007-05-08
A student pose la question :
I need help on these two problems( substitution method)

-2x+7y=10
x-3y= -3
and
6x-8y= -12
-3x+4y=9

Penny Nom lui répond.
The substitution method 2007-01-31
Victoria pose la question :
how do i solve this problem using the substitution method?
2x-5= -14
-7x+14y= -5

Stephen La Rocque lui répond.
The substitution method 2004-11-28
A student pose la question :
I Was working and i ran into this problem can you help me solve it using the substitution method?

-3x-2y=-10
x+5y=-27

Penny Nom lui répond.
The substitution method 2004-02-14
Keisha pose la question :
I need to solve this problem by using the substitution method.
3x+y=1
x=2y+5
Please help me understand the method to solve.

Penny Nom lui répond.
Substitution method 2003-09-14
John pose la question :

Hello, my name is john and while I was finishing up my work I stumbled into these problems. a/4-b=-1
a+b=11
and
6a-b=-5
4a-3b=-8

Thanks a lot. I really need some help :)
John


Penny Nom lui répond.
The substitution method 2002-02-24
Joe pose la question :
whats the answer to this question? 3x+y=11
x+2y=-3

its substitution method i am having alot of trouble figuring it out. send the answer as soon as possible. thank you


Penny Nom lui répond.
 
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