Good evening ,
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Answer:
A. x=all real numbers.
D. x = [tex]\frac{2-np}{2}[/tex]
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Step-by-step explanation:
25-5x=5(-x+5)
25-5x=-5x+25
25-5x=25-5x
Then this equation is valid for all real number x
Note : If you replace x by any number you will get 0 = 0 and that always true.
:)
