Solving Systems of Equation via Substitution
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Uploader Comments (Hansen48066)
Top Comments
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i hate algebra
2 years ago 39
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And it took my teacher 45 minutes to explain this.
YouTube is so much better than some teachers out there.
2 years ago 25
All Comments (146)
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ok wher did he get the negative 2 from
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OMG. Thank you sosososososososososososo much!!!!!!!!!!!??:D This seriously helped!!!! My algebra teacher is gonna be shocked that I got this!!!:))
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what if it says 3x + 4y = -1
and 4x - 3y = 7?
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@MDKIRBY7 LMAO
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2x+y=7
3x+2y=7
plz solve it i don't know to solve..
.
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{x+y=10
x-y+2
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this helps... alot
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this is my problem & i dont know how to do it ?
2x+8y=1
x=2y
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i love you
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what if you DON'T have a variable with a coefficient of 1... I haven't watched the whole video yet so I don't know if you explain it, but... yeah lol
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My worksheet says:
y = x
y = -x + 2
And I don't know what to do because I don't know what to plug innn?
Priyamx19 2 years ago
since y = x, meaning y is interchangeable with x, replace y with the letter x into the 2nd equation:
x = -x + 2. Now, solve for x.
Hansen48066 2 years ago