janessa0804
28.07.2019 •
Mathematics
Is the given number a solution of the equation? c = 2c – 4; 8
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Ответ:
8 =? 2*8 - 4
8 =? 16 - 4
8 =? 12
8 is not a solution of the original equation
Try 4
4 = 2*4 - 4
4 = 8 - 4
4 = 4 and yes 4 works.
4 is unique. No other solution will work.
Ответ:
Your answer should be B. 1/9