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Simplifying 2x + -9 + -3r = 4 Reorder the terms: -9 + -3r + 2x = 4 Solving -9 + -3r + 2x = 4 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '9' to each side of the equation. -9 + -3r + 9 + 2x = 4 + 9 Reorder the terms: -9 + 9 + -3r + 2x = 4 + 9 Combine like terms: -9 + 9 = 0 0 + -3r + 2x = 4 + 9 -3r + 2x = 4 + 9 Combine like terms: 4 + 9 = 13 -3r + 2x = 13 Add '-2x' to each side of the equation. -3r + 2x + -2x = 13 + -2x Combine like terms: 2x + -2x = 0 -3r + 0 = 13 + -2x -3r = 13 + -2x Divide each side by '-3'. r = -4.333333333 + 0.6666666667x Simplifying r = -4.333333333 + 0.6666666667x
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