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anonymous
 4 years ago
If you were to use the substitution method to solve the following system, choose the new system of equations that would result if x was isolated in the second equation.
3x + y + 2z = 1
x + 2y – z = –8
3x – y – 3z = 18
anonymous
 4 years ago
If you were to use the substitution method to solve the following system, choose the new system of equations that would result if x was isolated in the second equation. 3x + y + 2z = 1 x + 2y – z = –8 3x – y – 3z = 18

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0I dont understand what I am supposed to do? Do I use the substitution method? Do I isolate the second equation?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0So I am just supposed to isolate x?

Hero
 4 years ago
Best ResponseYou've already chosen the best response.0Well, actually, that's the first step. You still have to substitute the expression for x into the other equations to get the "new" systems of equations.
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