Solve the system of equations using substitution.


y = −2x + 1

4x + 2y = −2

A) No solution
B) Infinity many solutions
C) (0,-4)
D) (-4,0)

Respuesta :

For this case we have the following system of equations:

[tex]y = -2x + 1\\4x + 2y = -2[/tex]

To solve, we follow the steps below:

We substitute the first equation in the second one:

[tex]4x + 2 (-2x + 1) = - 2[/tex]

We apply distributive property to the terms within parentheses:

[tex]4x-4x + 2 = -2\\2 = -2[/tex]

Equality is not fulfilled. For any value of "x" equality will never be true.

Thus, the system has no solution.

Answer:

Option A

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