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Simplifying 6x(x + -3) = x + 7 Reorder the terms: 6x(-3 + x) = x + 7 (-3 * 6x + x * 6x) = x + 7 (-18x + 6x2) = x + 7 Reorder the terms: -18x + 6x2 = 7 + x Solving -18x + 6x2 = 7 + x Solving for variable 'x'. Reorder the terms: -7 + -18x + -1x + 6x2 = 7 + x + -7 + -1x Combine like terms: -18x + -1x = -19x -7 + -19x + 6x2 = 7 + x + -7 + -1x Reorder the terms: -7 + -19x + 6x2 = 7 + -7 + x + -1x Combine like terms: 7 + -7 = 0 -7 + -19x + 6x2 = 0 + x + -1x -7 + -19x + 6x2 = x + -1x Combine like terms: x + -1x = 0 -7 + -19x + 6x2 = 0 Factor a trinomial. (-1 + -3x)(7 + -2x) = 0Subproblem 1
Set the factor '(-1 + -3x)' equal to zero and attempt to solve: Simplifying -1 + -3x = 0 Solving -1 + -3x = 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 + -3x = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -3x = 0 + 1 -3x = 0 + 1 Combine like terms: 0 + 1 = 1 -3x = 1 Divide each side by '-3'. x = -0.3333333333 Simplifying x = -0.3333333333Subproblem 2
Set the factor '(7 + -2x)' equal to zero and attempt to solve: Simplifying 7 + -2x = 0 Solving 7 + -2x = 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 + -2x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -2x = 0 + -7 -2x = 0 + -7 Combine like terms: 0 + -7 = -7 -2x = -7 Divide each side by '-2'. x = 3.5 Simplifying x = 3.5Solution
x = {-0.3333333333, 3.5}
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