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  3. 1a) solve by substitution. 2x − y + 3 = 0 x2

1A) Solve by substitution. 2x − y + 3 = 0 x2 +y2 −4x=0 1B) Solving system by...

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Basic Math

1A) Solve by substitution.

2x − y + 3 = 0 x2 +y2 −4x=0

1B)

Solving system by Gaussian Elimination and then by backsubstitution
3x − 3y + 6z = 6

x + 2y − z = 5 5x −8y +13z = 7

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