No, the expressions –0.5(3x 5) and –1.5x 2.5 are not equivalent.
Using the distributive property to expand the first expression, you would get -1.5x - 2.5. Since the constant term does not have the same sign as the second expression, the two expressions are not equivalent. 
Also, if you substitute in a value for x and evaluate each expression, the values will not be equal.
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Last one! 
explanation is I remember having this question and studying this bad in middle school :)
        
             
        
        
        
Answer:
x =4
Step-by-step explanation:
 
        
             
        
        
        
Answer:
53=n
Step-by-step explanation:
10*53=530.
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