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Simplifying 5y2 = 21y Solving 5y2 = 21y Solving for variable 'y'. Reorder the terms: -21y + 5y2 = 21y + -21y Combine like terms: 21y + -21y = 0 -21y + 5y2 = 0 Factor out the Greatest Common Factor (GCF), 'y'. y(-21 + 5y) = 0Subproblem 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 = 0Subproblem 2
Set the factor '(-21 + 5y)' equal to zero and attempt to solve: Simplifying -21 + 5y = 0 Solving -21 + 5y = 0 Move all terms containing y to the left, all other terms to the right. Add '21' to each side of the equation. -21 + 21 + 5y = 0 + 21 Combine like terms: -21 + 21 = 0 0 + 5y = 0 + 21 5y = 0 + 21 Combine like terms: 0 + 21 = 21 5y = 21 Divide each side by '5'. y = 4.2 Simplifying y = 4.2Solution
y = {0, 4.2}
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