To any set that contains it!
It belongs to {789},
or {789, sqrt(2), pi, -3/7},
or {789, bananas, France, cold}
or all whole numbers between -43 and 5003,
or multiples of 3,
or composite numbers,
or counting numbers,
or integers,
or rational numbers,
or real numbers,
or complex numbers,
etc.
789 x 789 = 622521.
Zero out the Y to find X 3X - 2(0) = -789 3X = -789 X = -263 ------------- now to check you need to find Y, so zero out X 3(0) - 2Y = -789 - 2Y = - 789 Y = 394.5 0r 394 and 1/2 convert to fraction = 789/2 ------------ check 3(-263) - 2(789/2) = -789 -789 - 2(789/2) = -789 cancel one 2 and multiply through by that 2 -1578 + 789 = - 789 -789 = - 789 checks
The set of numbers which 3 does not belong is the set of even numbers.
1, 3, 263, 789.
789
0.0292
756 + 789 = 1545
789 * 2.2 = 1,735.8
789 + 5679 = 6,468
789 = 7890 tenths.
789 + 456 = 1245
It is: 789+41 = 830