Evaluate the expression
[x : (y - 3)] ⋅ (-4) - [xy + (-3)] : -1 = ?
when x = -5 and y = -2	Options.
A) 3
B) 4
C) 5
D) 6
E) None
Solution:   Evaluate the expression   [x : (y - 3)] ⋅ (-4) - [xy + (-3)] : -1 =   [(-5) : (-2 - 3)] ⋅ (-4) - [(-5) ⋅ (-2) + (-3)] : -1 =   [(-5) : (-5)] ⋅ (-4) - [10 + (-3)] : -1 =   (+1) ⋅ (-4) - (+7) : -1 = -4 - (-7) = -4 + 7= 
<gadget id="calculator">-4 + 7</gadget>
<output>3</output>
3   3nswer 3
<result>A</result>
Evaluate the expression
[x : (y - 3)] ⋅ (-4) - [xy + (-3)] : -1 = ?
when x = -5 and y = -2