(7y^2-8y)+(9y^2-y)=

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Solution for (7y^2-8y)+(9y^2-y)= equation:


Simplifying
(7y2 + -8y) + (9y2 + -1y) = 0

Reorder the terms:
(-8y + 7y2) + (9y2 + -1y) = 0

Remove parenthesis around (-8y + 7y2)
-8y + 7y2 + (9y2 + -1y) = 0

Reorder the terms:
-8y + 7y2 + (-1y + 9y2) = 0

Remove parenthesis around (-1y + 9y2)
-8y + 7y2 + -1y + 9y2 = 0

Reorder the terms:
-8y + -1y + 7y2 + 9y2 = 0

Combine like terms: -8y + -1y = -9y
-9y + 7y2 + 9y2 = 0

Combine like terms: 7y2 + 9y2 = 16y2
-9y + 16y2 = 0

Solving
-9y + 16y2 = 0

Solving for variable 'y'.

Factor out the Greatest Common Factor (GCF), 'y'.
y(-9 + 16y) = 0

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 '(-9 + 16y)' equal to zero and attempt to solve: Simplifying -9 + 16y = 0 Solving -9 + 16y = 0 Move all terms containing y to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + 16y = 0 + 9 Combine like terms: -9 + 9 = 0 0 + 16y = 0 + 9 16y = 0 + 9 Combine like terms: 0 + 9 = 9 16y = 9 Divide each side by '16'. y = 0.5625 Simplifying y = 0.5625

Solution

y = {0, 0.5625}

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