If x is one integer and x+1 is the next, we have 2*x+9=x+1. Subtracting 9 and x from both sides, we get x(the smaller number)=-8 and the larger number is -7.
78.33 (3 rounds down)
0.0605 (5 rounds up)
288.60 (8 rounds up, but there is a nine, so nine becomes 0 and 5 becomes 6)
0.101 (8 rounds up)
3/5x + 1/2y = 30
-3/5x. -3/5x
1/2y = -3/5x + 30
—————————
1/2
Y= -1.2x + 60