Sticking a query mark at the end of a bunch of numbers and letters does not make a sensible question that can be answered.
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(9 - y)(a + 5)
(9 - y)(a + 5)
y+9=14 subtract 9 from each side to get y by itself y=5
-2-5
9y + 5 = 0 (-5 on both sides)9y = -5 (/9 on both sides)y = -5/9