Question 193815
adding 1st and 2nd equations gives ___ 6x-y=26  (A)


multiplying 2nd equation by 2 and adding 3rd equation gives ___ 9x-5y=25  (B)


multiplying equation (A) by -5 ___ -30x+5y=-130
adding equation (B) ___ -21x=-105
dividing by -21 ___ x=5