2t^2+7=9t

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Solution for 2t^2+7=9t equation:


Simplifying
2t2 + 7 = 9t

Reorder the terms:
7 + 2t2 = 9t

Solving
7 + 2t2 = 9t

Solving for variable 't'.

Reorder the terms:
7 + -9t + 2t2 = 9t + -9t

Combine like terms: 9t + -9t = 0
7 + -9t + 2t2 = 0

Factor a trinomial.
(1 + -1t)(7 + -2t) = 0

Subproblem 1

Set the factor '(1 + -1t)' equal to zero and attempt to solve: Simplifying 1 + -1t = 0 Solving 1 + -1t = 0 Move all terms containing t to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -1t = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -1t = 0 + -1 -1t = 0 + -1 Combine like terms: 0 + -1 = -1 -1t = -1 Divide each side by '-1'. t = 1 Simplifying t = 1

Subproblem 2

Set the factor '(7 + -2t)' equal to zero and attempt to solve: Simplifying 7 + -2t = 0 Solving 7 + -2t = 0 Move all terms containing t to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -2t = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -2t = 0 + -7 -2t = 0 + -7 Combine like terms: 0 + -7 = -7 -2t = -7 Divide each side by '-2'. t = 3.5 Simplifying t = 3.5

Solution

t = {1, 3.5}

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