What is 9y plus 4 equals 2y plus 25?

9Y + 4 = 2Y + 25

subtract 2Y from both sides

7Y + 4 = 25

subtract 4 from both sides

7Y = 21

divide both sides integers by 7

(7/7)Y = 21/7

Y = 3

-----------------check in original equation

9(3) + 4 = 2(3) + 25

27 + 4 = 6 + 25

31 = 31

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