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Solve the following system of linear equations by using the Elimination Method:
21 - 3y=3
3+y=10
a) What number would you multiply the bottom equation by in order to eliminate the y's?
b) Do the multiplication...what is the new bottom equation?
x +
y =
C) Now add the top equation to your new equation and solve for x. What do you get?
x =

Respuesta :

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Step-by-step explanation:

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https://teachers.henrico.k12.va.us/math/HCPSAlgebra1/Documents/9-4/SolveSysByElimMult.ppt

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