Question

x-y=25,2x+3y=180 2x-3y=-5,x+y/11=50 x-y=19,-2x+y/6=28

Answer 1

X-y=25,2x+3y=180 -------> (51,26)
2x-3y=-5,x+y/11=50 ------> (47,33)
 x-y=19,-2x+y/6=28 -------> (-17, -36)
2x-y=-6, (x-305)/3=2y ----> (-31,-56)