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Simplifying (9x2) = 55x + 56 Reorder the terms: (9x2) = 56 + 55x Solving (9x2) = 56 + 55x Solving for variable 'x'. Reorder the terms: -56 + -55x + (9x2) = 56 + 55x + -56 + -55x Reorder the terms: -56 + -55x + (9x2) = 56 + -56 + 55x + -55x Combine like terms: 56 + -56 = 0 -56 + -55x + (9x2) = 0 + 55x + -55x -56 + -55x + (9x2) = 55x + -55x Combine like terms: 55x + -55x = 0 -56 + -55x + (9x2) = 0 Factor a trinomial. (-8 + -9x)(7 + -1x) = 0Subproblem 1
Set the factor '(-8 + -9x)' equal to zero and attempt to solve: Simplifying -8 + -9x = 0 Solving -8 + -9x = 0 Move all terms containing x to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + -9x = 0 + 8 Combine like terms: -8 + 8 = 0 0 + -9x = 0 + 8 -9x = 0 + 8 Combine like terms: 0 + 8 = 8 -9x = 8 Divide each side by '-9'. x = -0.8888888889 Simplifying x = -0.8888888889Subproblem 2
Set the factor '(7 + -1x)' equal to zero and attempt to solve: Simplifying 7 + -1x = 0 Solving 7 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -1x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1x = 0 + -7 -1x = 0 + -7 Combine like terms: 0 + -7 = -7 -1x = -7 Divide each side by '-1'. x = 7 Simplifying x = 7Solution
x = {-0.8888888889, 7}
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