Linear system/6 variables/Almost not linked/Exercise

Solve the system of linear equations

${}7y=5\,,$

${}4z=8\,,$

${}2u-3v=0\,,$

${}5w=0\,,$

${}6x-3y+2z-11u-v+5w=17\,,$

${}4u-5v=0\,.$

Create a solution