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Simplifying 16 + -1r * 9 = r Reorder the terms for easier multiplication: 16 + -1 * 9r = r Multiply -1 * 9 16 + -9r = r Solving 16 + -9r = r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-1r' to each side of the equation. 16 + -9r + -1r = r + -1r Combine like terms: -9r + -1r = -10r 16 + -10r = r + -1r Combine like terms: r + -1r = 0 16 + -10r = 0 Add '-16' to each side of the equation. 16 + -16 + -10r = 0 + -16 Combine like terms: 16 + -16 = 0 0 + -10r = 0 + -16 -10r = 0 + -16 Combine like terms: 0 + -16 = -16 -10r = -16 Divide each side by '-10'. r = 1.6 Simplifying r = 1.6
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