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Simplifying 2[3 + -1(8 + -5r)] + -1r = 16 + 3(2 + 3r) 2[3 + (8 * -1 + -5r * -1)] + -1r = 16 + 3(2 + 3r) 2[3 + (-8 + 5r)] + -1r = 16 + 3(2 + 3r) Combine like terms: 3 + -8 = -5 2[-5 + 5r] + -1r = 16 + 3(2 + 3r) [-5 * 2 + 5r * 2] + -1r = 16 + 3(2 + 3r) [-10 + 10r] + -1r = 16 + 3(2 + 3r) Combine like terms: 10r + -1r = 9r -10 + 9r = 16 + 3(2 + 3r) -10 + 9r = 16 + (2 * 3 + 3r * 3) -10 + 9r = 16 + (6 + 9r) Combine like terms: 16 + 6 = 22 -10 + 9r = 22 + 9r Add '-9r' to each side of the equation. -10 + 9r + -9r = 22 + 9r + -9r Combine like terms: 9r + -9r = 0 -10 + 0 = 22 + 9r + -9r -10 = 22 + 9r + -9r Combine like terms: 9r + -9r = 0 -10 = 22 + 0 -10 = 22 Solving -10 = 22 Couldn't find a variable to solve for. This equation is invalid, the left and right sides are not equal, therefore there is no solution.
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