The answer to 7 is 4 and the answer to 8 is 2.7
        
                    
             
        
        
        
<span>Direct proof. A direct proof is a way of establishing the truth or falsehood of a given mathematical statement by a combination of established facts, usually axioms, lemmas and theorems. It assumes the hypothesis of a conjecture is true and then uses a series of logical deductions to prove that the conclusion as well.</span>
        
             
        
        
        
Opposite sides are parallel
Opposite angles are congruent
Opposite sides are congruent.
        
             
        
        
        
The answer is actually 80 degrees, I just took the test.
        
                    
             
        
        
        
-14x + 5 = 34 
-14x = 29
x = -2.10