cynthia70646p31c99
cynthia70646p31c99
24-01-2018
Mathematics
contestada
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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