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Simplifying -16r + -3(4 + 4r) = -16 -16r + (4 * -3 + 4r * -3) = -16 -16r + (-12 + -12r) = -16 Reorder the terms: -12 + -16r + -12r = -16 Combine like terms: -16r + -12r = -28r -12 + -28r = -16 Solving -12 + -28r = -16 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '12' to each side of the equation. -12 + 12 + -28r = -16 + 12 Combine like terms: -12 + 12 = 0 0 + -28r = -16 + 12 -28r = -16 + 12 Combine like terms: -16 + 12 = -4 -28r = -4 Divide each side by '-28'. r = 0.1428571429 Simplifying r = 0.1428571429
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