Question

y(y-1)=(y+3)( y+1) find the value of y
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Answer 1

Answer:

y²-y = y²+y+3y+3

y²-y = y²+4y+3

y²-y² = 4y-y+3

0 = 3y + 3

-3 = 3y

y = -3/3

y= -1