AnswersNC-Math 2Solving Linear Systems by Substitution

Solving 3 x 3 Linear Systems Answers

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1
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What is the solution to the system of equations?

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A
(7, 9)
B
(9, 7)
C
(–5, 11)
D
(11, –5)
2
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Which first step for solving the given system using substitution results in an equation without fractions?

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A
Solve for x in the first equation.
B
Solve for y in the first equation.
C
Solve for x in the second equation.
D
Solve for y in the second equation.
3

What is the solution to the following system of equations?

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A
It has infinitely many solutions.
B
It has no solution.
C
It has one solution (2, –3).
D
It has one solution (4, 0).

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Solving 3 x 3 Linear Systems Answers — NC-Math 2