Parallel lines have the same slope. 4 and -4 are not the same slope, which means they will intersect. A tool to check your answers such as this is Desmos. It really helps. Search Desmos graphing calculator. Hope this helps.
Then we will multiply both sides of the equation by 2 π : x + π ( 1 - x ) = 0 x + π - π x = 0 x ( 1 - π ) = - π / · ( - 1 ) x ( π - 1 ) = π x = π / ( π - 1 )
