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Simplifying 9(3x + -4) = 5(x + -4) * 22x Reorder the terms: 9(-4 + 3x) = 5(x + -4) * 22x (-4 * 9 + 3x * 9) = 5(x + -4) * 22x (-36 + 27x) = 5(x + -4) * 22x Reorder the terms: -36 + 27x = 5(-4 + x) * 22x Reorder the terms for easier multiplication: -36 + 27x = 5 * 22x(-4 + x) Multiply 5 * 22 -36 + 27x = 110x(-4 + x) -36 + 27x = (-4 * 110x + x * 110x) -36 + 27x = (-440x + 110x2) Solving -36 + 27x = -440x + 110x2 Solving for variable 'x'. Combine like terms: 27x + 440x = 467x -36 + 467x + -110x2 = -440x + 110x2 + 440x + -110x2 Reorder the terms: -36 + 467x + -110x2 = -440x + 440x + 110x2 + -110x2 Combine like terms: -440x + 440x = 0 -36 + 467x + -110x2 = 0 + 110x2 + -110x2 -36 + 467x + -110x2 = 110x2 + -110x2 Combine like terms: 110x2 + -110x2 = 0 -36 + 467x + -110x2 = 0 Begin completing the square. Divide all terms by -110 the coefficient of the squared term: Divide each side by '-110'. 0.3272727273 + -4.245454545x + x2 = 0 Move the constant term to the right: Add '-0.3272727273' to each side of the equation. 0.3272727273 + -4.245454545x + -0.3272727273 + x2 = 0 + -0.3272727273 Reorder the terms: 0.3272727273 + -0.3272727273 + -4.245454545x + x2 = 0 + -0.3272727273 Combine like terms: 0.3272727273 + -0.3272727273 = 0.0000000000 0.0000000000 + -4.245454545x + x2 = 0 + -0.3272727273 -4.245454545x + x2 = 0 + -0.3272727273 Combine like terms: 0 + -0.3272727273 = -0.3272727273 -4.245454545x + x2 = -0.3272727273 The x term is -4.245454545x. Take half its coefficient (-2.122727273). Square it (4.505971076) and add it to both sides. Add '4.505971076' to each side of the equation. -4.245454545x + 4.505971076 + x2 = -0.3272727273 + 4.505971076 Reorder the terms: 4.505971076 + -4.245454545x + x2 = -0.3272727273 + 4.505971076 Combine like terms: -0.3272727273 + 4.505971076 = 4.1786983487 4.505971076 + -4.245454545x + x2 = 4.1786983487 Factor a perfect square on the left side: (x + -2.122727273)(x + -2.122727273) = 4.1786983487 Calculate the square root of the right side: 2.044186476 Break this problem into two subproblems by setting (x + -2.122727273) equal to 2.044186476 and -2.044186476.Subproblem 1
x + -2.122727273 = 2.044186476 Simplifying x + -2.122727273 = 2.044186476 Reorder the terms: -2.122727273 + x = 2.044186476 Solving -2.122727273 + x = 2.044186476 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.122727273' to each side of the equation. -2.122727273 + 2.122727273 + x = 2.044186476 + 2.122727273 Combine like terms: -2.122727273 + 2.122727273 = 0.000000000 0.000000000 + x = 2.044186476 + 2.122727273 x = 2.044186476 + 2.122727273 Combine like terms: 2.044186476 + 2.122727273 = 4.166913749 x = 4.166913749 Simplifying x = 4.166913749Subproblem 2
x + -2.122727273 = -2.044186476 Simplifying x + -2.122727273 = -2.044186476 Reorder the terms: -2.122727273 + x = -2.044186476 Solving -2.122727273 + x = -2.044186476 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.122727273' to each side of the equation. -2.122727273 + 2.122727273 + x = -2.044186476 + 2.122727273 Combine like terms: -2.122727273 + 2.122727273 = 0.000000000 0.000000000 + x = -2.044186476 + 2.122727273 x = -2.044186476 + 2.122727273 Combine like terms: -2.044186476 + 2.122727273 = 0.078540797 x = 0.078540797 Simplifying x = 0.078540797Solution
The solution to the problem is based on the solutions from the subproblems. x = {4.166913749, 0.078540797}
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