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Simplifying 3(r + -2) = -7 Reorder the terms: 3(-2 + r) = -7 (-2 * 3 + r * 3) = -7 (-6 + 3r) = -7 Solving -6 + 3r = -7 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 + 6 + 3r = -7 + 6 Combine like terms: -6 + 6 = 0 0 + 3r = -7 + 6 3r = -7 + 6 Combine like terms: -7 + 6 = -1 3r = -1 Divide each side by '3'. r = -0.3333333333 Simplifying r = -0.3333333333
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