24x6=24-(12x3)-12 divided 4x3is 12
The awnser:0
Hope it help
It is correct
One room per day. Nine rooms in nine days
2x+y>-4, 2*5-12=10-12= - 2, -2 > -4 (5, -12) matched, 2*0 + 1= 1> - 4, (0,1) matched, 2*-1 + (-1) = -3 > -4, (-1,-1) matched, the solutions are (5, -12) , (0,1) and (-1,-1), if the question is 2x+y>-4,
The constant of proportionality is 3/8
