HELP PLS ASAP
Kira solved the equation in the following way. 
 7/2  − 2x = 11/2 
 7/2  − 7/2  − 2x = 11/2  − 7/2 
 −2x ÷ −2 = 4/2  ÷ − 2 
            x = −1 
 Describe the properties of equality that Kira used.  
The first step is to use the _______ property of equality to combine the constant terms. 
1.addition
2.subtraction
3.multiplication
4.division
The second step is to use the _______ property of equality to isolate the variable.
1.addition
2.subtraction
3.multiplication
4.division