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-3-y=24 y=3x solving systems of equations by substitution
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-3-y=24 y=3x solving systems of equations by substitution
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Apr 1, 2016
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-3-y=24
y=3x solving systems of equations by substitution
Mathematics
high-school
Daniel Mahadi
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Daniel Mahadi
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{ - 3 - y = 24 ⇒ - y = 24 + 3 .(-1) ⇒ y = - 24 - 3 ⇒
y = - 27
{ y = 3x
y = 3x
( - 27 ) = 3x
- 27 = 3x
- 27
= x
3
- 9 = x
S = { - 9 , - 27 }
Cosmin Atanasiu
answered
Apr 6, 2016
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Cosmin Atanasiu
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