Algebra 1: Common Core (15th Edition)

We know that y=2x+1. Thus, in the second equation, wherever we see y, we will substitute 2x+1, and then we will solve: $4x - 2 (2x+1 ) =6 \\\\ 4x -4x -2 = 6 \\\\ -2 =6$ This is not true, so there is no solution.