-7y(y-3)+y^2=-6y^2-63

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Solution for -7y(y-3)+y^2=-6y^2-63 equation:


Simplifying
-7y(y + -3) + y2 = -6y2 + -63

Reorder the terms:
-7y(-3 + y) + y2 = -6y2 + -63
(-3 * -7y + y * -7y) + y2 = -6y2 + -63
(21y + -7y2) + y2 = -6y2 + -63

Combine like terms: -7y2 + y2 = -6y2
21y + -6y2 = -6y2 + -63

Reorder the terms:
21y + -6y2 = -63 + -6y2

Add '6y2' to each side of the equation.
21y + -6y2 + 6y2 = -63 + -6y2 + 6y2

Combine like terms: -6y2 + 6y2 = 0
21y + 0 = -63 + -6y2 + 6y2
21y = -63 + -6y2 + 6y2

Combine like terms: -6y2 + 6y2 = 0
21y = -63 + 0
21y = -63

Solving
21y = -63

Solving for variable 'y'.

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

Divide each side by '21'.
y = -3

Simplifying
y = -3

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