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Cummings
Mathematics
20 October, 11:09
What is - 3 (3y-7) = 21-9y
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Cameron Chaney
20 October, 11:31
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the equation is equivalent, y is any number
Step-by-step explanation:
-3 (3y-7) = 21-9y
-9y + 21 = 21 - 9y
-9y = - 9y
y=y
any number will satisfy y=y
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