3. The Transitive Property of Congruence states that if _XYZ ZAOB and ZAOBLWYT, then
ZAOB ZAOB
2XYZZZYX
O
XYZZWYT
ZAOBXYZ

The additive inverse of any number a is some number (-a) that makes the statement a + (-a) = 0 true.if we break up the complex number by parts and try to get each part to 0, we find that -12 + 12 = 0, and 4i + (-4i) = 0. putting those additive inverses together, we find that the additive inverse of -12 + 4i is 12 - 4i.