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Simplifying 6x + -3(r + -2) = 40 Reorder the terms: 6x + -3(-2 + r) = 40 6x + (-2 * -3 + r * -3) = 40 6x + (6 + -3r) = 40 Reorder the terms: 6 + -3r + 6x = 40 Solving 6 + -3r + 6x = 40 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -3r + -6 + 6x = 40 + -6 Reorder the terms: 6 + -6 + -3r + 6x = 40 + -6 Combine like terms: 6 + -6 = 0 0 + -3r + 6x = 40 + -6 -3r + 6x = 40 + -6 Combine like terms: 40 + -6 = 34 -3r + 6x = 34 Add '-6x' to each side of the equation. -3r + 6x + -6x = 34 + -6x Combine like terms: 6x + -6x = 0 -3r + 0 = 34 + -6x -3r = 34 + -6x Divide each side by '-3'. r = -11.33333333 + 2x Simplifying r = -11.33333333 + 2x
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