If you are good at determining sequences please help!

Solve x+3y=6 and 4x-6y=6 by elimination . show work !

Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?

Given the median qr and trapezoid mnpo what is the value of x?