0
Anonymous
y^2 - 12y + 36 = 9
subtract 9 from each side
y^2 - 12y + 27 = 0
easy factoring by inspection
(y - 3)(y - 9)
y = 3
y = 9
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45
-3
9 divided by 9 equals 1, and 3 times 12 equals 36. 1 plus 36 equals 37.
4x = -36 x = -9
9 times what equals 36 = 324