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

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Question 169981: Hi, Can you please help?
.
Can you please give me some math problems for my homework?
I need to solve systems of equations
.
Can you please give some systems of equations that I could solve?
.
Keep in mind that I have to solve these equations with both the substitution, and elimination method
.
I would like some easy problems ( with answers with whole numbers, like ( 4,5 ) and ( -1, 8 ) )
.
I would like some medium problems ( with answers with nice fractions such as ( 1/2, - 3/4 ) and ( 2/5, 1/10 )
.
I would like hard problems ( with answers with fractions like ( 43/99, 44/199) and ( - 309/299, 87/77 )
.
I need to at least have 20 - 30 problems. So I need at least 20 people to submit one, or ten submit two, and so forth, ( or if one person could send a lot of them)
.
It doesn't matter if I get 1000(exaggeration) problems, I just need a good number of them.
.
Please send me the answers to my email at Electrified_Levi@yahoo.com
.
Also, if some can give some easy 3 variable equations with whole numbers, or even medium difficulty
.
Thanks
: Hi, Can you please help?
.
Can you please give me some math problems for my homework?
I need to solve systems of equations
.
Can you please give some systems of equations that I could solve?
.
Keep in mind that I have to solve these equations with both the substitution, and elimination method
.
I would like some easy problems ( with answers with whole numbers, like ( 4,5 ) and ( -1, 8 ) )
.
I would like some medium problems ( with answers with nice fractions such as ( 1/2, - 3/4 ) and ( 2/5, 1/10 )
.
I would like hard problems ( with answers with fractions like ( 43/99, 44/199) and ( - 309/299, 87/77 )
.
I need to at least have 20 - 30 problems. So I need at least 20 people to submit one, or ten submit two, and so forth, ( or if one person could send a lot of them)
.
It doesn't matter if I get 1000(exaggeration) problems, I just need a good number of them.
.
Please send me the answers to my email at Electrified_Levi@yahoo.com
.
Also, if some can give some easy 3 variable equations with whole numbers, or even medium difficulty
.
Thanks

Answer by jim_thompson5910(9921) About Me  (Show Source):
You can put this solution on YOUR website!
System of Equations with 2 variables


Easy Problem:

system(x+y=10,x-y=4)


Solution: (7,3)

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Medium Problem:

system(2x+y=10,x-2y=4)


Solution: (24/5, 2/5)


-----------------------------------------

Hard Problem:

system(5x+13y=11,7x-3y=-22)


Solution: (-253/106,187/106)



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System of Equations with 3 variables


Easy Problem:

system(x+y+z=10,x-y+z=4,2x+3y-z=11 )


Solution: (3,3,4)

-----------------------------------------



Medium Problem:

system(2x+6y+3z=2,4x-2y+2z=14,2x+2y-z=10)


Solution: (43/10,-1/5,-9/5)

-----------------------------------------



Hard Problem:

system(4x+6y+8z=13,3x-7y+z=14,2x+5y-z=12 )


Solution: (707/135, 5/54, -287/270)

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