Linear Equations

Question

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

Answer 1

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

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

=> 10 = -1, which is impossible.

So, the system is inconsistent.