cynthia70646p31c99 cynthia70646p31c99

24-01-2018
Mathematics

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8×9=(5+y)×9 , what is y?

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mysticaldogg mysticaldogg

24-01-2018

8 * 9 = (5 + y) * 9
multiply 8 and 9

72 = (5 + y) * 9
use the distributive property

72 = 45 + 9y
subtract 45 from both sides

27 = 9y
divide both sides by 9 to isolate the variable

y = 3

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