AnswersNC-Math 2Solving Linear Systems by Substitution

Solving Linear Systems by Substitution Answers

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Which graph shows the solution to the following system?2x + 5y = –6 x – 2y = –3

A
Option
B
Option
2
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Solve for x in the second equation and substitute it into the first equation. The result is .

A
2(x – 2y – 3) + 5y = –6
B
2(x – 2y) + 5y = –9
C
2(–3 + 2y) + 5y = –6
D
2(–3 – 2y) + 5y = –6
3

To eliminate x, and then add the equations.

A
multiply the second equation by –2
B
divide the second equation by 2
C
multiply the first equation by 2

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