7. Name the property which justifies the following conclusion, Givens 2x + 3 = 10 Conclus on: then 2r = 7 A. Addition property of equality C. Reilevive property B. Multiplication property of equality D. Transitive property 8. There are four parts of the Mathematical system. Which of the following is not a part of the mathematical system? A. corollary B. theorems C. avioms or postulate D. defined and undefined terms 9. Which of the following illustrates a commutative axiom? A. (3+ n) + 5 = 3 + (n + 5) B. 17+ b) = (a)(7)+(a)(b) C.4+na+4 0.9+ (-9) = 0 10. Which of the following correctly illustrates associative property? A. (AB + BC) + CD = (BC + AB) + CD C. (AB BC) + CD = AB + BC & CD) B.(AB + BC) + CD = CD + (AB + BC) D(4B + BC) + CD = (AB BC), CD​