3t-(7-11t)=t(5t-5)

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Solution for 3t-(7-11t)=t(5t-5) equation:


Simplifying
3t + -1(7 + -11t) = t(5t + -5)
3t + (7 * -1 + -11t * -1) = t(5t + -5)
3t + (-7 + 11t) = t(5t + -5)

Reorder the terms:
-7 + 3t + 11t = t(5t + -5)

Combine like terms: 3t + 11t = 14t
-7 + 14t = t(5t + -5)

Reorder the terms:
-7 + 14t = t(-5 + 5t)
-7 + 14t = (-5 * t + 5t * t)
-7 + 14t = (-5t + 5t2)

Solving
-7 + 14t = -5t + 5t2

Solving for variable 't'.

Combine like terms: 14t + 5t = 19t
-7 + 19t + -5t2 = -5t + 5t2 + 5t + -5t2

Reorder the terms:
-7 + 19t + -5t2 = -5t + 5t + 5t2 + -5t2

Combine like terms: -5t + 5t = 0
-7 + 19t + -5t2 = 0 + 5t2 + -5t2
-7 + 19t + -5t2 = 5t2 + -5t2

Combine like terms: 5t2 + -5t2 = 0
-7 + 19t + -5t2 = 0

Begin completing the square.  Divide all terms by
-5 the coefficient of the squared term: 

Divide each side by '-5'.
1.4 + -3.8t + t2 = 0

Move the constant term to the right:

Add '-1.4' to each side of the equation.
1.4 + -3.8t + -1.4 + t2 = 0 + -1.4

Reorder the terms:
1.4 + -1.4 + -3.8t + t2 = 0 + -1.4

Combine like terms: 1.4 + -1.4 = 0.0
0.0 + -3.8t + t2 = 0 + -1.4
-3.8t + t2 = 0 + -1.4

Combine like terms: 0 + -1.4 = -1.4
-3.8t + t2 = -1.4

The t term is -3.8t.  Take half its coefficient (-1.9).
Square it (3.61) and add it to both sides.

Add '3.61' to each side of the equation.
-3.8t + 3.61 + t2 = -1.4 + 3.61

Reorder the terms:
3.61 + -3.8t + t2 = -1.4 + 3.61

Combine like terms: -1.4 + 3.61 = 2.21
3.61 + -3.8t + t2 = 2.21

Factor a perfect square on the left side:
(t + -1.9)(t + -1.9) = 2.21

Calculate the square root of the right side: 1.486606875

Break this problem into two subproblems by setting 
(t + -1.9) equal to 1.486606875 and -1.486606875.

Subproblem 1

t + -1.9 = 1.486606875 Simplifying t + -1.9 = 1.486606875 Reorder the terms: -1.9 + t = 1.486606875 Solving -1.9 + t = 1.486606875 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '1.9' to each side of the equation. -1.9 + 1.9 + t = 1.486606875 + 1.9 Combine like terms: -1.9 + 1.9 = 0.0 0.0 + t = 1.486606875 + 1.9 t = 1.486606875 + 1.9 Combine like terms: 1.486606875 + 1.9 = 3.386606875 t = 3.386606875 Simplifying t = 3.386606875

Subproblem 2

t + -1.9 = -1.486606875 Simplifying t + -1.9 = -1.486606875 Reorder the terms: -1.9 + t = -1.486606875 Solving -1.9 + t = -1.486606875 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '1.9' to each side of the equation. -1.9 + 1.9 + t = -1.486606875 + 1.9 Combine like terms: -1.9 + 1.9 = 0.0 0.0 + t = -1.486606875 + 1.9 t = -1.486606875 + 1.9 Combine like terms: -1.486606875 + 1.9 = 0.413393125 t = 0.413393125 Simplifying t = 0.413393125

Solution

The solution to the problem is based on the solutions from the subproblems. t = {3.386606875, 0.413393125}

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