21t^2-12t=3t

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Solution for 21t^2-12t=3t equation:


Simplifying
21t2 + -12t = 3t

Reorder the terms:
-12t + 21t2 = 3t

Solving
-12t + 21t2 = 3t

Solving for variable 't'.

Reorder the terms:
-12t + -3t + 21t2 = 3t + -3t

Combine like terms: -12t + -3t = -15t
-15t + 21t2 = 3t + -3t

Combine like terms: 3t + -3t = 0
-15t + 21t2 = 0

Factor out the Greatest Common Factor (GCF), '3t'.
3t(-5 + 7t) = 0

Ignore the factor 3.

Subproblem 1

Set the factor 't' equal to zero and attempt to solve: Simplifying t = 0 Solving t = 0 Move all terms containing t to the left, all other terms to the right. Simplifying t = 0

Subproblem 2

Set the factor '(-5 + 7t)' equal to zero and attempt to solve: Simplifying -5 + 7t = 0 Solving -5 + 7t = 0 Move all terms containing t to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + 7t = 0 + 5 Combine like terms: -5 + 5 = 0 0 + 7t = 0 + 5 7t = 0 + 5 Combine like terms: 0 + 5 = 5 7t = 5 Divide each side by '7'. t = 0.7142857143 Simplifying t = 0.7142857143

Solution

t = {0, 0.7142857143}

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