Answer:
The missing reason is Subtraction Property of Equality.
Explanation:
⇒ (Given)
On Solving we get;
Multiplying 2 on both side we get;
![2((3)/(2)x+5)=-4*2\\\\2* (3)/(2)x+5* 2=-4* 2](https://img.qammunity.org/2020/formulas/mathematics/middle-school/30q66duvopwgpmj0gaic132pmvoc9sv0a0.png)
⇒ (Multiplication Property of Equality)
Now Subtracting Both side by 10 we get;
![3x+10-10=-8-10](https://img.qammunity.org/2020/formulas/mathematics/middle-school/fa4dvu3zcdzq06n6bg1ofmc6ueii8ct93l.png)
⇒ (Subtraction Property of Equality)
Now Dividing both side by 3 we get;
![(3x)/(3) = (-18)/(3)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/y7g07qe4br4xe3kczfe8udrie1yfyt65ow.png)
⇒ (Division Property of Equality)
Hence the missing reason is Subtraction Property of Equality.