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Simplifying 9y = 4y2 + 5 Reorder the terms: 9y = 5 + 4y2 Solving 9y = 5 + 4y2 Solving for variable 'y'. Reorder the terms: -5 + 9y + -4y2 = 5 + 4y2 + -5 + -4y2 Reorder the terms: -5 + 9y + -4y2 = 5 + -5 + 4y2 + -4y2 Combine like terms: 5 + -5 = 0 -5 + 9y + -4y2 = 0 + 4y2 + -4y2 -5 + 9y + -4y2 = 4y2 + -4y2 Combine like terms: 4y2 + -4y2 = 0 -5 + 9y + -4y2 = 0 Factor a trinomial. (-5 + 4y)(1 + -1y) = 0Subproblem 1
Set the factor '(-5 + 4y)' equal to zero and attempt to solve: Simplifying -5 + 4y = 0 Solving -5 + 4y = 0 Move all terms containing y to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + 4y = 0 + 5 Combine like terms: -5 + 5 = 0 0 + 4y = 0 + 5 4y = 0 + 5 Combine like terms: 0 + 5 = 5 4y = 5 Divide each side by '4'. y = 1.25 Simplifying y = 1.25Subproblem 2
Set the factor '(1 + -1y)' equal to zero and attempt to solve: Simplifying 1 + -1y = 0 Solving 1 + -1y = 0 Move all terms containing y to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -1y = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -1y = 0 + -1 -1y = 0 + -1 Combine like terms: 0 + -1 = -1 -1y = -1 Divide each side by '-1'. y = 1 Simplifying y = 1Solution
y = {1.25, 1}
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