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Linear Equations

Solve the systems of linear equations by using the method of substitution. If the system is consistent, inconsistent, or dependent, say so in your answer. y=-2x+5 4x+2y=-1

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Robert J. | Certified High School AP Calculus and Physics TeacherCertified High School AP Calculus and Ph...
4.6 4.6 (13 lesson ratings) (13)

Plug in y = -2x+5 into the second equation,

4x+2(-2x+5) = -1

=> 10 = -1, which is impossible.

So, the system is inconsistent.