(Y+7)(y-3)=0

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Solution for (Y+7)(y-3)=0 equation:


Simplifying
(Y + 7)(y + -3) = 0

Reorder the terms:
(7 + Y)(y + -3) = 0

Reorder the terms:
(7 + Y)(-3 + y) = 0

Multiply (7 + Y) * (-3 + y)
(7(-3 + y) + Y(-3 + y)) = 0
((-3 * 7 + y * 7) + Y(-3 + y)) = 0
((-21 + 7y) + Y(-3 + y)) = 0
(-21 + 7y + (-3 * Y + y * Y)) = 0
(-21 + 7y + (-3Y + yY)) = 0

Reorder the terms:
(-21 + -3Y + 7y + yY) = 0
(-21 + -3Y + 7y + yY) = 0

Solving
-21 + -3Y + 7y + yY = 0

Solving for variable 'Y'.

Move all terms containing Y to the left, all other terms to the right.

Add '21' to each side of the equation.
-21 + -3Y + 7y + 21 + yY = 0 + 21

Reorder the terms:
-21 + 21 + -3Y + 7y + yY = 0 + 21

Combine like terms: -21 + 21 = 0
0 + -3Y + 7y + yY = 0 + 21
-3Y + 7y + yY = 0 + 21

Combine like terms: 0 + 21 = 21
-3Y + 7y + yY = 21

Add '-7y' to each side of the equation.
-3Y + 7y + -7y + yY = 21 + -7y

Combine like terms: 7y + -7y = 0
-3Y + 0 + yY = 21 + -7y
-3Y + yY = 21 + -7y

Reorder the terms:
-21 + -3Y + 7y + yY = 21 + -7y + -21 + 7y

Reorder the terms:
-21 + -3Y + 7y + yY = 21 + -21 + -7y + 7y

Combine like terms: 21 + -21 = 0
-21 + -3Y + 7y + yY = 0 + -7y + 7y
-21 + -3Y + 7y + yY = -7y + 7y

Combine like terms: -7y + 7y = 0
-21 + -3Y + 7y + yY = 0

The solution to this equation could not be determined.

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