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Simplifying 4(x + 1) + -7 = 3(x + -1) * x Reorder the terms: 4(1 + x) + -7 = 3(x + -1) * x (1 * 4 + x * 4) + -7 = 3(x + -1) * x (4 + 4x) + -7 = 3(x + -1) * x Reorder the terms: 4 + -7 + 4x = 3(x + -1) * x Combine like terms: 4 + -7 = -3 -3 + 4x = 3(x + -1) * x Reorder the terms: -3 + 4x = 3(-1 + x) * x Reorder the terms for easier multiplication: -3 + 4x = 3x(-1 + x) -3 + 4x = (-1 * 3x + x * 3x) -3 + 4x = (-3x + 3x2) Solving -3 + 4x = -3x + 3x2 Solving for variable 'x'. Combine like terms: 4x + 3x = 7x -3 + 7x + -3x2 = -3x + 3x2 + 3x + -3x2 Reorder the terms: -3 + 7x + -3x2 = -3x + 3x + 3x2 + -3x2 Combine like terms: -3x + 3x = 0 -3 + 7x + -3x2 = 0 + 3x2 + -3x2 -3 + 7x + -3x2 = 3x2 + -3x2 Combine like terms: 3x2 + -3x2 = 0 -3 + 7x + -3x2 = 0 Begin completing the square. Divide all terms by -3 the coefficient of the squared term: Divide each side by '-3'. 1 + -2.333333333x + x2 = 0 Move the constant term to the right: Add '-1' to each side of the equation. 1 + -2.333333333x + -1 + x2 = 0 + -1 Reorder the terms: 1 + -1 + -2.333333333x + x2 = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -2.333333333x + x2 = 0 + -1 -2.333333333x + x2 = 0 + -1 Combine like terms: 0 + -1 = -1 -2.333333333x + x2 = -1 The x term is -2.333333333x. Take half its coefficient (-1.166666667). Square it (1.361111112) and add it to both sides. Add '1.361111112' to each side of the equation. -2.333333333x + 1.361111112 + x2 = -1 + 1.361111112 Reorder the terms: 1.361111112 + -2.333333333x + x2 = -1 + 1.361111112 Combine like terms: -1 + 1.361111112 = 0.361111112 1.361111112 + -2.333333333x + x2 = 0.361111112 Factor a perfect square on the left side: (x + -1.166666667)(x + -1.166666667) = 0.361111112 Calculate the square root of the right side: 0.600925213 Break this problem into two subproblems by setting (x + -1.166666667) equal to 0.600925213 and -0.600925213.Subproblem 1
x + -1.166666667 = 0.600925213 Simplifying x + -1.166666667 = 0.600925213 Reorder the terms: -1.166666667 + x = 0.600925213 Solving -1.166666667 + x = 0.600925213 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.166666667' to each side of the equation. -1.166666667 + 1.166666667 + x = 0.600925213 + 1.166666667 Combine like terms: -1.166666667 + 1.166666667 = 0.000000000 0.000000000 + x = 0.600925213 + 1.166666667 x = 0.600925213 + 1.166666667 Combine like terms: 0.600925213 + 1.166666667 = 1.76759188 x = 1.76759188 Simplifying x = 1.76759188Subproblem 2
x + -1.166666667 = -0.600925213 Simplifying x + -1.166666667 = -0.600925213 Reorder the terms: -1.166666667 + x = -0.600925213 Solving -1.166666667 + x = -0.600925213 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.166666667' to each side of the equation. -1.166666667 + 1.166666667 + x = -0.600925213 + 1.166666667 Combine like terms: -1.166666667 + 1.166666667 = 0.000000000 0.000000000 + x = -0.600925213 + 1.166666667 x = -0.600925213 + 1.166666667 Combine like terms: -0.600925213 + 1.166666667 = 0.565741454 x = 0.565741454 Simplifying x = 0.565741454Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.76759188, 0.565741454}
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