5y^2-126y=9y^2

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Solution for 5y^2-126y=9y^2 equation:


Simplifying
5y2 + -126y = 9y2

Reorder the terms:
-126y + 5y2 = 9y2

Solving
-126y + 5y2 = 9y2

Solving for variable 'y'.

Combine like terms: 5y2 + -9y2 = -4y2
-126y + -4y2 = 9y2 + -9y2

Combine like terms: 9y2 + -9y2 = 0
-126y + -4y2 = 0

Factor out the Greatest Common Factor (GCF), '-2y'.
-2y(63 + 2y) = 0

Ignore the factor -2.

Subproblem 1

Set the factor 'y' equal to zero and attempt to solve: Simplifying y = 0 Solving y = 0 Move all terms containing y to the left, all other terms to the right. Simplifying y = 0

Subproblem 2

Set the factor '(63 + 2y)' equal to zero and attempt to solve: Simplifying 63 + 2y = 0 Solving 63 + 2y = 0 Move all terms containing y to the left, all other terms to the right. Add '-63' to each side of the equation. 63 + -63 + 2y = 0 + -63 Combine like terms: 63 + -63 = 0 0 + 2y = 0 + -63 2y = 0 + -63 Combine like terms: 0 + -63 = -63 2y = -63 Divide each side by '2'. y = -31.5 Simplifying y = -31.5

Solution

y = {0, -31.5}

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