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Simplifying 9x2 = 7x + 2 Reorder the terms: 9x2 = 2 + 7x Solving 9x2 = 2 + 7x Solving for variable 'x'. Reorder the terms: -2 + -7x + 9x2 = 2 + 7x + -2 + -7x Reorder the terms: -2 + -7x + 9x2 = 2 + -2 + 7x + -7x Combine like terms: 2 + -2 = 0 -2 + -7x + 9x2 = 0 + 7x + -7x -2 + -7x + 9x2 = 7x + -7x Combine like terms: 7x + -7x = 0 -2 + -7x + 9x2 = 0 Factor a trinomial. (-2 + -9x)(1 + -1x) = 0Subproblem 1
Set the factor '(-2 + -9x)' equal to zero and attempt to solve: Simplifying -2 + -9x = 0 Solving -2 + -9x = 0 Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -9x = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -9x = 0 + 2 -9x = 0 + 2 Combine like terms: 0 + 2 = 2 -9x = 2 Divide each side by '-9'. x = -0.2222222222 Simplifying x = -0.2222222222Subproblem 2
Set the factor '(1 + -1x)' equal to zero and attempt to solve: Simplifying 1 + -1x = 0 Solving 1 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -1x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -1x = 0 + -1 -1x = 0 + -1 Combine like terms: 0 + -1 = -1 -1x = -1 Divide each side by '-1'. x = 1 Simplifying x = 1Solution
x = {-0.2222222222, 1}
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