Question

Solve the system of equations by substitution. What is the solution for x? (1 point)
2x + y = 1
4x + 2y = −1

Answer 1

Answer:

                2x + y = 1

         2x - 2x + y = 1 - 2x

                        y = 1 - 2x

                        y = -2x + 1

              4x + 2y = -1

   4x + 2(-2x + 1) = -1

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

         4x - 4x + 2 = -1

                        2 ≠ -1

The solution of the problem can't be a solution because they are both parallel lines, which means they have no solution.

Step-by-step explanation: