Find the value of y when the arithmetic mean of 3y+1 and 4y +9 is 2y+11. help:3

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Find the value of y when the arithmetic mean of 3y+1 and 4y +9 is 2y+11.

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3x+1+4y+9 = 2y+11___(1)

3x+10+4y = 2y + 11____(2)

3x+4y = 2y + 11-10____(3)

3x + 4y = 2y +1_____(4)

3x + 4y - 2y = 1______(5)

3x +2y = 1_______(6)

Juanma answered Oct 14, 2022

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