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Simplifying -40 + 2r = 8 + -8(r + 6) Reorder the terms: -40 + 2r = 8 + -8(6 + r) -40 + 2r = 8 + (6 * -8 + r * -8) -40 + 2r = 8 + (-48 + -8r) Combine like terms: 8 + -48 = -40 -40 + 2r = -40 + -8r Add '40' to each side of the equation. -40 + 40 + 2r = -40 + 40 + -8r Combine like terms: -40 + 40 = 0 0 + 2r = -40 + 40 + -8r 2r = -40 + 40 + -8r Combine like terms: -40 + 40 = 0 2r = 0 + -8r 2r = -8r Solving 2r = -8r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '8r' to each side of the equation. 2r + 8r = -8r + 8r Combine like terms: 2r + 8r = 10r 10r = -8r + 8r Combine like terms: -8r + 8r = 0 10r = 0 Divide each side by '10'. r = 0.0 Simplifying r = 0.0
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