3-14x=11-7x[22.3+7x]

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Solution for 3-14x=11-7x[22.3+7x] equation:


Simplifying
3 + -14x = 11 + -7x[22.3 + 7x]
3 + -14x = 11 + [22.3 * -7x + 7x * -7x]
3 + -14x = 11 + [-156.1x + -49x2]

Solving
3 + -14x = 11 + -156.1x + -49x2

Solving for variable 'x'.

Reorder the terms:
3 + -11 + -14x + 156.1x + 49x2 = 11 + -156.1x + -49x2 + -11 + 156.1x + 49x2

Combine like terms: 3 + -11 = -8
-8 + -14x + 156.1x + 49x2 = 11 + -156.1x + -49x2 + -11 + 156.1x + 49x2

Combine like terms: -14x + 156.1x = 142.1x
-8 + 142.1x + 49x2 = 11 + -156.1x + -49x2 + -11 + 156.1x + 49x2

Reorder the terms:
-8 + 142.1x + 49x2 = 11 + -11 + -156.1x + 156.1x + -49x2 + 49x2

Combine like terms: 11 + -11 = 0
-8 + 142.1x + 49x2 = 0 + -156.1x + 156.1x + -49x2 + 49x2
-8 + 142.1x + 49x2 = -156.1x + 156.1x + -49x2 + 49x2

Combine like terms: -156.1x + 156.1x = 0.0
-8 + 142.1x + 49x2 = 0.0 + -49x2 + 49x2
-8 + 142.1x + 49x2 = -49x2 + 49x2

Combine like terms: -49x2 + 49x2 = 0
-8 + 142.1x + 49x2 = 0

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

Divide each side by '49'.
-0.1632653061 + 2.9x + x2 = 0

Move the constant term to the right:

Add '0.1632653061' to each side of the equation.
-0.1632653061 + 2.9x + 0.1632653061 + x2 = 0 + 0.1632653061

Reorder the terms:
-0.1632653061 + 0.1632653061 + 2.9x + x2 = 0 + 0.1632653061

Combine like terms: -0.1632653061 + 0.1632653061 = 0.0000000000
0.0000000000 + 2.9x + x2 = 0 + 0.1632653061
2.9x + x2 = 0 + 0.1632653061

Combine like terms: 0 + 0.1632653061 = 0.1632653061
2.9x + x2 = 0.1632653061

The x term is 2.9x.  Take half its coefficient (1.45).
Square it (2.1025) and add it to both sides.

Add '2.1025' to each side of the equation.
2.9x + 2.1025 + x2 = 0.1632653061 + 2.1025

Reorder the terms:
2.1025 + 2.9x + x2 = 0.1632653061 + 2.1025

Combine like terms: 0.1632653061 + 2.1025 = 2.2657653061
2.1025 + 2.9x + x2 = 2.2657653061

Factor a perfect square on the left side:
(x + 1.45)(x + 1.45) = 2.2657653061

Calculate the square root of the right side: 1.505245929

Break this problem into two subproblems by setting 
(x + 1.45) equal to 1.505245929 and -1.505245929.

Subproblem 1

x + 1.45 = 1.505245929 Simplifying x + 1.45 = 1.505245929 Reorder the terms: 1.45 + x = 1.505245929 Solving 1.45 + x = 1.505245929 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.45' to each side of the equation. 1.45 + -1.45 + x = 1.505245929 + -1.45 Combine like terms: 1.45 + -1.45 = 0.00 0.00 + x = 1.505245929 + -1.45 x = 1.505245929 + -1.45 Combine like terms: 1.505245929 + -1.45 = 0.055245929 x = 0.055245929 Simplifying x = 0.055245929

Subproblem 2

x + 1.45 = -1.505245929 Simplifying x + 1.45 = -1.505245929 Reorder the terms: 1.45 + x = -1.505245929 Solving 1.45 + x = -1.505245929 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.45' to each side of the equation. 1.45 + -1.45 + x = -1.505245929 + -1.45 Combine like terms: 1.45 + -1.45 = 0.00 0.00 + x = -1.505245929 + -1.45 x = -1.505245929 + -1.45 Combine like terms: -1.505245929 + -1.45 = -2.955245929 x = -2.955245929 Simplifying x = -2.955245929

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.055245929, -2.955245929}

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