Solving Linear Systems of Equations Using Substitution

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Solving Linear Systems of Equations Using Substitution - 3 complete examples are shown along with an outline of the basic idea! For more free math videos, visit http://PatrickJMT.com

Category:

Education

Tags:

• math
• algebra
• solving
• linear
• systems
• equations
• substitution
• SAT
• ACT
• AP
• BC
• medina
• washington

[SatterRacing175]

Thanks for the help it is 5:45 AM doing some last minute studying for my freshmen finals .

[patrickJMT]

@SatterRacing175 good luck on it all

[lxXDobbyXxl]

Saving me from a teacher who can't explain the concepts! I'm the only one who got a passing grade on the last test!! ;D



[patrickJMT]

@lxXDobbyXxl nice :) congrats!

[logan7x7]

im still beyond confused

[patrickJMT]

@logan7x7 sorry! it can be tricky stuff

[patrickJMT]

@Arturo1997ist does pen and paper blow your mind?

[TORNapartPAPERyoyo]

@5Demigod25 grade 8? im in grade ten and im just learning this shit

[wowwee2000]

thank you :'D i needed this

[GrandNecro]

@9lucky2 thats wat i got but im not sure if its correct because the answer was (2,8) and thx cause my friend corrected it

[9lucky2]

@GrandNecro

If y=4x then just substitute y for 4x so it would be -3x-4x = -14 then just solve for x.

[GrandNecro]

i still need help, im only in 7th grade and my question is

-3x - y = -14

y = 4x

[Stopwar1234]

wait but what do you do with why at the very end?Like in your example it just canceled out or equaled zero.My didn't do that.

[Stopwar1234]

I really cannot thank you enough!

[LGTxxTROLL]

Still not understanding this.. :/

[BeileberLUVXOXO13]

I amin grade 8 and this was on our midterm too. thank you! my teacher does not know how to teach algebra AT ALL